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TZID:America/Detroit
TZURL:http://tzurl.org/zoneinfo/America/Detroit
X-LIC-LOCATION:America/Detroit
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TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20070311T020000
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DTSTART:20071104T020000
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BEGIN:VEVENT
DTSTAMP:20260304T174808
DTSTART;TZID=America/Detroit:20260309T160000
DTEND;TZID=America/Detroit:20260309T170000
SUMMARY:Livestream / Virtual:An introduction to Dirac geometry and reduction schemes for concurrent Dirac structures.
DESCRIPTION:I will provide first a gentle introduction to Dirac geometry\, which is a way to unify pre-symplectic and Poisson geometry\, as well as turning possibly singular Poisson structures into a perfectly smooth object. \n\nAfter this\, I will consider a particular situation of transferring Dirac structures which is the following:\ngiven an embedded submanifold X of a Dirac manifold (M\, L_M) and given p: X -> Y a smooth surjective submersion\, we want to derive the minimal set of conditions to transfer the Dirac structure L_M on M to a Dirac structure L_Y on Y. These conditions are however not compatible with concurrence\, which is a generalization for Dirac structures of the notion of commuting Poisson pairs. \n\nThen I will characterize a geometric structure\, more precisely a vector bundle E\subset TM|_X that is a \emph{witness} for concurrence: it allows to transfer weakly concurrent Dirac structures on M to weakly concurrent Dirac structures on Y. We show that the Marsden-Ratiu reduction in Poisson geometry is exactly a special case of this construction. Furthermore\, in the presence of a Hamiltonian action of a Lie group G on L_M\, there is a natural candidate for a witness E. \n\nThe main results carry over to the case of complex Dirac structures. This allows us to give an extension of the bi-Hamiltonian reduction of Casati\, Magri e Pedroni in terms of our framework and provide a (conjectural) interpretation of it in terms of complex Dirac structures. \n\nThis talk is based on a joint work with Dan Aguero\, Pedro Frejlich and Igor Mencattini.
UID:143124-21892178@events.umich.edu
URL:https://events.umich.edu/event/143124
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Seminar,Virtual
LOCATION:Off Campus Location
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260301T210529
DTSTART;TZID=America/Detroit:20260309T160000
DTEND;TZID=America/Detroit:20260309T170000
SUMMARY:Workshop / Seminar:GLNT: Eigenvarieties over CM fields and Galois representations
DESCRIPTION:Eigenvarieties are parameter spaces for certain p-adic automorphic forms of varying weight. These objects have become increasingly popular for studying the Fontaine—Mazur conjecture\, which leads us to ask what kinds of Galois representations appear on eigenvarieties. Our main result shows that for eigenvarieties for the group GL_n over a CM field\, the associated Galois representations are trianguline at all p-adic places\, resolving a conjecture of Hansen (following Kisin\, Colmez\, Bellaiche—Chenevier). The strategy of proof (which could be of independent interest) is to embed eigenvarieties for GL_n into an eigenvariety for a 2n-variable unitary group.
UID:143319-21892899@events.umich.edu
URL:https://events.umich.edu/event/143319
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260301T160025
DTSTART;TZID=America/Detroit:20260310T160000
DTEND;TZID=America/Detroit:20260310T170000
SUMMARY:Lecture / Discussion:Colloquium: From face numbers to Frobenius
DESCRIPTION:In 1971\, McMullen conjectured a characterization of the face numbers of convex simplicial polytopes. This conjecture\, dubbed the “g-conjecture”\, was resolved over the following ten years by work of Stanley and Billera–Lee. The extension of this conjecture to simplicial spheres remained open much longer. We will discuss the ingenious characteristic 2 proof given by Papadakis–Petrotou in 2020 and provide a unifying framework for it in commutative algebra. This is joint work in progress with Adiprasito\, Papadakis\, Petrotou\, and Oba.
UID:144156-21894748@events.umich.edu
URL:https://events.umich.edu/event/144156
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260305T022516
DTSTART;TZID=America/Detroit:20260311T040000
DTEND;TZID=America/Detroit:20260311T050000
SUMMARY:Workshop / Seminar:Probability/Analysis Circle: What is the Toda Lattice?
DESCRIPTION:To briefly answer the question in the title\, the Toda lattice is a system of particles connected with springs having an exponential force law.  It turns out that the exponential force law is very special\, allowing one to completely describe the dynamics of the system.  In this talk\, we will solve the Toda lattice explicitly in the case of two particles\, and describe the long-term dynamics of the system by analyzing the solution.  Then we will show how the method can be generalized so that any number of particles can be handled with similar precision.  The general method involves a surprising connection with linear algebra.
UID:146216-21898666@events.umich.edu
URL:https://events.umich.edu/event/146216
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260307T195009
DTSTART;TZID=America/Detroit:20260311T150000
DTEND;TZID=America/Detroit:20260311T160000
SUMMARY:Workshop / Seminar:Symplectomorphisms of S² × S²
DESCRIPTION:Title: \nAbstract: Unlike Riemannian geometry\, symplectic topology is locally flexible\; by Darboux's and Moser’s theorems\, it carries no local invariants. However\, despite this local flexibility\, Mikhail Gromov revealed profound global rigidity phenomena in 1985 by introducing the study of J-holomorphic curves in symplectic manifolds. In this talk\, we will explore J-holomorphic spheres in S² × S² and see how they can be used to understand the topology of the group of symplectomorphisms.
UID:146311-21898866@events.umich.edu
URL:https://events.umich.edu/event/146311
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260304T203826
DTSTART;TZID=America/Detroit:20260311T153000
DTEND;TZID=America/Detroit:20260311T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: Special valuations and automorphisms of affine log Calabi-Yau varieties
DESCRIPTION:The notion of special valuations\, i.e. finitely generated valuations inducing klt degenerations\, plays an important role in the recent study of K-stability and moduli of Fano varieties. Given an affine log Calabi-Yau variety U\, we show that its special skeleton\, namely the space of special valuations in the dual complex of U\, is independent of the choice of its Fano compactifications. Consequently\, the special skeleton of U is invariant under the action of Aut(U). As an example\, when U is the complement of a Markov cubic surface in the affine three-space\, we show that the action of three Vieta involutions on the special skeleton exhibits a surprising connection with dynamics on the hyperbolic plane.
UID:143141-21892306@events.umich.edu
URL:https://events.umich.edu/event/143141
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260226T132636
DTSTART;TZID=America/Detroit:20260311T160000
DTEND;TZID=America/Detroit:20260311T170000
SUMMARY:Presentation:2026 Ford Motor Company Distinguished Lecture in Physics | Organic Semiconductors – From OLED displays to new applications
DESCRIPTION:Lecture Abstract: Organic molecules with semiconducting properties are now used as the light-emitting diodes\, LEDs\, in organic LEDdisplays. These are now the dominant technologies for high-performance displays used in smartphones and televisions\, but their potential applications are far broader\, from solar cells to printable electronics to bio-interfaces. I will describe some of the journey from early discoveries to practical display technology\, and outline some of our current research on the new phenomena these materials can exhibit\, including their use as optically-accessed quantum sensors.\n\nFind out more about Professor Richard Friend by visiting our Ford Lecture event page at https://myumi.ch/g35nR.\n\nThis lecture will be held in person and livestreamed: https://youtu.be/P6lg1HTqkW8
UID:138273-21882703@events.umich.edu
URL:https://events.umich.edu/event/138273
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:AEM Featured,College Of Engineering,Faculty,Free,Graduate Students,Lecture,Lifelong Learning,Natural Sciences,Physics,seminar,Smoke-free,Undergrad Physics Events,Undergraduate Students
LOCATION:Rackham Graduate School (Horace H.) - Amphitheater, 4th Floor, Rackham Building
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260201T230754
DTSTART;TZID=America/Detroit:20260311T160000
DTEND;TZID=America/Detroit:20260311T170000
SUMMARY:Workshop / Seminar:Outperforming a Benchmark with $\alpha$-Bregman Wasserstein divergence
DESCRIPTION:We consider the problem of active portfolio management\, where an investor seeks the portfolio with maximal expected utility of the difference between the terminal wealth of their strategy and a proportion of the benchmark's\, subject to a budget\, and a deviation constraint from the benchmark portfolio.\nAs the investor aims at outperforming the benchmark\, they choose a divergence that asymmetrically penalises gains and losses as well as penalises underperforming the benchmark more than outperforming it. This is achieved by the recently introduced $\alpha$-Bregman-Wasserstein divergence\, subsuming the Bregman-Wasserstein and the popular Wasserstein divergence. We prove existence and uniqueness\, characterise the optimal portfolio strategy\, and give explicit criteria when the divergence constraints and the budget constraints are binding. We conclude with a numerical illustration of the optimal quantile function in a geometric Brownian motion market model.
UID:138587-21883421@events.umich.edu
URL:https://events.umich.edu/event/138587
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260226T132523
DTSTART;TZID=America/Detroit:20260312T140000
DTEND;TZID=America/Detroit:20260312T160000
SUMMARY:Presentation:Bounding HSL Numbers: A Measure of the Nilpotency of Frobenius
DESCRIPTION:Abstract: This thesis provides upper bounds for a certain singularity invariant\, in the case where the underlying ring is in one of a few well-known classes of rings. The Hartshorne-Speiser-Lyubeznik number or HSL number of a Noetherian local (or graded) ring is a measure of the nilpotency of Frobenius on local cohomology with support at the (homogeneous) maximal ideal. It is known that the HSL number of such a ring is finite\, but it is not known in general how to compute the HSL number for any given ring. In this thesis we present computable upper bounds for the HSL numbers of semigroup rings\, toric face rings\, and quotients of polynomial rings by monomial ideals\, and compute the exact HSL number of monomial hypersurfaces. We also relate the HSL number of a ring to the HSL number of its reduction\, provide Macaulay2 code to compute HSL numbers of quotients of polynomial rings\, and discuss the application of our results to bounding Frobenius test exponents.
UID:145996-21898240@events.umich.edu
URL:https://events.umich.edu/event/145996
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Dissertation,Graduate,Graduate Students,Mathematics
LOCATION:Angell Hall - Auditorium B
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260112T103427
DTSTART;TZID=America/Detroit:20260312T143000
DTEND;TZID=America/Detroit:20260312T163000
SUMMARY:Workshop / Seminar:Student Real Analysis Reading Group
DESCRIPTION:The Student Real Analysis Reading Group facilitated by Siwei Wang will meet every Thursday from 2:30–4:30 PM in East Hall 5822 from Thursday\, January 15 - April 16\, 2026.
UID:143702-21893679@events.umich.edu
URL:https://events.umich.edu/event/143702
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Undergraduate Students
LOCATION:East Hall - 5822
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260227T094828
DTSTART;TZID=America/Detroit:20260312T150000
DTEND;TZID=America/Detroit:20260312T170000
SUMMARY:Presentation:Sequential Decision Making with Offline Data and under Partial Observability
DESCRIPTION:What Makes Partially Observable Decision Making Tractable?\n\nAbstract: \nReal-world sequential decision-making problems - such as those in healthcare\, recommendation\, and language model alignment - are complicated by latent variables that influence the data but are never directly observed. The most general framework for such settings\, the partially observable MDP\, is statistically intractable. What structure makes learning tractable despite the latent variables?\n\nThis work identifies a common structural pattern across four distinct settings: the latent variable's influence is confined to one part of the data-generating process\, and within that part it acts through a low-dimensional or low-complexity channel. We study this pattern in mixtures of MDPs\, confounded offline policy evaluation\, RLHF with partially observed reward states\, and linear latent contextual bandits. In each case\, we establish impossibility results showing what fails without the right assumptions\, then develop algorithms that exploit the structure through spectral subspace recovery\, decoupled estimation\, and optimism calibrated to the latent channel's complexity. The resulting regret bounds\, sample complexity bounds\, and structural characterizations scale with the dimension of the latent channel rather than the ambient problem\, and are matched by minimax lower bounds in key settings. We validate our methods on both synthetic and real-world data.
UID:146014-21898272@events.umich.edu
URL:https://events.umich.edu/event/146014
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Dissertation,Graduate,Graduate Students,Mathematics
LOCATION:School of Education - 2328
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260125T202636
DTSTART;TZID=America/Detroit:20260312T154500
DTEND;TZID=America/Detroit:20260312T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Learning Seminar: The Mumford construction
DESCRIPTION:Discuss the Mumford construction.
UID:144457-21895383@events.umich.edu
URL:https://events.umich.edu/event/144457
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260225T094937
DTSTART;TZID=America/Detroit:20260312T160000
DTEND;TZID=America/Detroit:20260312T170000
SUMMARY:Workshop / Seminar:Differential Equations Seminar: Einstein-Perfect Fluid Initial Data in General Relativity
DESCRIPTION:Fluids are a standard matter source for gravitation\, going back to the early days of general relativity. Nevertheless\, constructing initial data for this family of matter models is surprisingly nuanced. In this talk we describe a novel approach to building Einstein-fluid initial data based on a recently established phase-space technique for constructing non-vacuum initial data sets. Compared to prior approaches to working with fluids\, the input parameters allow for more direct specification of physical quantities\, such as the number of particles in any given region.
UID:143107-21892132@events.umich.edu
URL:https://events.umich.edu/event/143107
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Differential Equations Seminar - Department Of Mathematics,Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260213T174924
DTSTART;TZID=America/Detroit:20260312T160000
DTEND;TZID=America/Detroit:20260312T173000
SUMMARY:Workshop / Seminar:RTG NT:
DESCRIPTION:2.1-2.2 of Darmon-Vonk
UID:145486-21897401@events.umich.edu
URL:https://events.umich.edu/event/145486
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Number Theory
LOCATION:East Hall - 1060
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260303T112516
DTSTART;TZID=America/Detroit:20260313T130000
DTEND;TZID=America/Detroit:20260313T140000
SUMMARY:Workshop / Seminar:Type theory seminar: Universes
DESCRIPTION:This is a learning seminar on dependent type theory\, following Egbert Rijke's book \"Introduction to Homotopy Type Theory.\" This talk will cover chapter 6 of Rijke's book\, on universes.
UID:145362-21897190@events.umich.edu
URL:https://events.umich.edu/event/145362
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260304T151939
DTSTART;TZID=America/Detroit:20260313T143000
DTEND;TZID=America/Detroit:20260313T153000
SUMMARY:Workshop / Seminar:Frobenius Identities in Combinatorics (Combinatorics seminar)
DESCRIPTION:Several recent proofs of unimodality theorems in combinatorics rely on unexpected identities satisfied by the volume map on combinatorially defined algebras over fields of characteristic p. The proof of unimodality for the h-vector of simplicial spheres by Papadakis–Petrotou and for the h^*-vector of IDP and Gorenstein lattice polytopes by Adiprasito–Papadakis–Petrotou both fit into this framework. In this talk\, we reinterpret the volume map from the perspective of commutative algebra and explain the origin of these identities. This viewpoint yields short proofs and suggests new research directions. This is joint work with Adiprasito\, Oba\, Papadakis\, and Petrotou.
UID:142070-21889967@events.umich.edu
URL:https://events.umich.edu/event/142070
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260126T144850
DTSTART;TZID=America/Detroit:20260313T150000
DTEND;TZID=America/Detroit:20260313T160000
SUMMARY:Lecture / Discussion:AIM Seminar:  Sensitivity limits from the geometry of nonequilibirum response
DESCRIPTION:Abstract:  Many biophysical processes can be accurately modeled as a system stochastically exploring a discrete and connected network of possible states. Probability distributions over this space are not only subject to the system's intrinsic noisy dynamics\, but may also be influenced by externally imposed perturbations. While results such as the Fluctuation-Dissipation Theorem allow for a precise understanding of how such perturbations may affect observable quantities on the system\, these only properly function at equilibrium. Here\, we explore the case of perturbations on nonequilibrium stochastic systems and derive a new response formula based on the Matrix-Tree Theorem approach. In particular\, we derive the tightest possible linear bounds to sensitivity in arbitrary observables based on only the topology of the state network. These bounds stem from achetypical primitive models we call \"uniquely constructable sets\" that dictate the system properties under extreme conditions. As an exploratory example\, we investigate a model of a macromolecule with three ligand binding sites to showcase how the uniquely constructable sets can be used to find all possible variations that are capable of maximizing the sensitivity of the number of bound sites relative to the external ligand concentration.\n\nContact:  AIM Seminar Organizers
UID:141900-21889615@events.umich.edu
URL:https://events.umich.edu/event/141900
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260223T005000
DTSTART;TZID=America/Detroit:20260313T150000
DTEND;TZID=America/Detroit:20260313T160000
SUMMARY:Workshop / Seminar:Student Algebraic Geometry: Calabi-Yau varieties\, essential skeleta\, and Berkovich spaces
DESCRIPTION:Associated to a Calabi--Yau (e.g. abelian varieties\, K3 surfaces)\, one can associate an essential skeleton\, which lives in the Berkovich analytification of the Calabi--Yau. This skeleton originates from mirror symmetry and captures geometrical and topological information of the Calabi--Yau. For example\, it is related to the birational geometry of the Calabi--Yau\, and in some situations the Calabi--Yau admits a Lagrangian fibration over this skeleton. \nWe will only assume knowledge of the definition of Calabi--Yaus and will introduce by examples.
UID:145808-21897840@events.umich.edu
URL:https://events.umich.edu/event/145808
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260220T142035
DTSTART;TZID=America/Detroit:20260314T103000
DTEND;TZID=America/Detroit:20260314T113000
SUMMARY:Presentation:Saturday Morning Physics | Magnets and Amplitudes: A Glimpse into the Quantum Realm
DESCRIPTION:Aaron Chan\, \"Extreme Magnetic Fields: How and Why\"\nLaboratory experimental apparatus can produce magnetic fields up to 100T—about 30 times stronger than hospital MRI machines and 10\,000 times larger than a regular fridge magnet. In this talk\, I will discuss the cutting-edge technology used by the National High Magnetic Field Laboratory to produce such powerful magnetic fields and the interesting physical phenomena probed in such extreme environments. \n\nJustin Berman\, \"Bootstrapping High-Energy Theories from Low-Energy Clues\"\nA key goal of particle physics theories is to predict how particles scatter off one another. However\, experimentally probing these interactions at very high energies is extremely difficult. In this talk\, I explain how fundamental principles of physics let us “bootstrap” low-energy data into predictions about high-energy particles\, independent of the underlying theory. By using this bootstrap technique\, I show that we can find upper and lower limits on the masses of particles in an approximation of the real world\, which predict the existence and properties of a massive particle that has not yet been observed.\n\nWe celebrate the Van Loo Family Student Presentations this Saturday!\n\nLecture and Q&A\, live-streamed on: https://myumi.ch/5kVRx
UID:144048-21894588@events.umich.edu
URL:https://events.umich.edu/event/144048
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Physics,College Of Engineering,Complex Systems,Faculty,Family,Free,Graduate And Professional Students,Graduate Students,Lecture,Lifelong Learning,Mathematics,Michigan Engineering,Physics,Postdoctoral Research Fellows,Prospective Undergraduate Students,Quantum,Quantum Computing,Quantum Science,Smoke-free
LOCATION:Weiser Hall - 170 & 182
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260220T125113
DTSTART;TZID=America/Detroit:20260316T120000
DTEND;TZID=America/Detroit:20260316T140000
SUMMARY:Presentation:Friezes and geometry
DESCRIPTION:Abstract: A fundamental problem in distance geometry aims to recover a finite tuple of points\, viewed up to oriented isometry\, from a small collection of input measurements. This thesis explores approaches to this problem based on the use of frieze patterns\, numerical arrays whose entries satisfy certain local algebraic relations.\n\nThe thesis consists of two main parts. The first part focuses on quadratic 3-term relations that underlie Coxeter-Conway frieze patterns. It surveys and extends existing work interpreting the values appearing in these relations as geometric measurement data\, and establishes direct connections between several geometric contexts in which these relations arise.\n\nThe aim of the second part of the thesis is to exhibit the broader applicability of frieze patterns as a tool in distance geometry. We identify measurement data that determines a finite configuration of points on a two-dimensional sphere in three-dimensional Euclidean space. Extending the work of Fomin and Setiabrata\, we introduce spherical Heronian and Cayley-Menger frieze patterns that organize this measurement data. Like classical Coxeter-Conway frieze patterns\, these new frieze patterns exhibit glide symmetry and a form of the Laurent phenomenon.
UID:145589-21897561@events.umich.edu
URL:https://events.umich.edu/event/145589
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Dissertation,Graduate,Graduate Students,Mathematics
LOCATION:School of Education - 2340
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251229T214307
DTSTART;TZID=America/Detroit:20260316T160000
DTEND;TZID=America/Detroit:20260316T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:143125-21892183@events.umich.edu
URL:https://events.umich.edu/event/143125
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Seminar
LOCATION:East Hall - EH 1866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260307T202415
DTSTART;TZID=America/Detroit:20260316T160000
DTEND;TZID=America/Detroit:20260316T170000
SUMMARY:Workshop / Seminar:GLNT: Igusa stacks and the cohomology of Shimura varieties
DESCRIPTION:Abstract: Igusa stacks are $p$-adic geometric objects\, recently introduced by Mingjia Zhang\, that roughly parametrize ways to $p$-adically uniformize (global) Shimura varieties by local Shimura varieties. In joint work with Patrick Daniels\, Pol van Hoften\, and Mingjia Zhang\, we construct Igusa stacks for all abelian type Shimura data and apply them to the study of $\ell$-adic cohomology of Shimura varieties. I will discuss the geometric ingredients that go into the construction as well as how it naturally fits into Fargues--Scholze's framework of categorical local Langlands
UID:143321-21892900@events.umich.edu
URL:https://events.umich.edu/event/143321
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260305T123833
DTSTART;TZID=America/Detroit:20260317T110000
DTEND;TZID=America/Detroit:20260317T130000
SUMMARY:Presentation:Invariants of Plabic Links
DESCRIPTION:Abstract: Plabic graphs were introduced by Postnikov in order to study a stratification of the totally nonnegative Grassmannian. To each plabic graph\, one can associate a quiver\, which is a directed graph that encodes a cluster algebra\, as well as a link. In this thesis\, we study invariants of these links\, called plabic links\, and their connections to the plabic graphs' quivers. \n\nWe focus primarily on forest quivers\, which are quivers whose underlying graphs are forests. We define the HOMFLY polynomial of a forest quiver and show that it agrees with the HOMFLY polynomial of any plabic link coming from a connected plabic graph whose quiver is that forest quiver. We define this polynomial recursively and also prove a closed formula for it. We will also comment on a way to extend the definition of part of this polynomial to some other acyclic quivers. Finally\, we discuss the Khovanov-Rozansky homology of certain plabic links associated to forest quivers and describe how to recursively compute it for a subset of these links.
UID:146129-21898423@events.umich.edu
URL:https://events.umich.edu/event/146129
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Dissertation,Graduate,Graduate Students,Mathematics
LOCATION:Off Campus Location - B860G
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20250919T094546
DTSTART;TZID=America/Detroit:20260317T123000
DTEND;TZID=America/Detroit:20260317T133000
SUMMARY:Lecture / Discussion:IBL Lunch
DESCRIPTION:Come talk about teaching with IBL\, interactive\, and other active teaching methods over lunch. Bring teaching anecdotes\, thoughts\, and your appetite. Lunch will be provided.
UID:138237-21882656@events.umich.edu
URL:https://events.umich.edu/event/138237
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2075
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260209T105248
DTSTART;TZID=America/Detroit:20260317T133000
DTEND;TZID=America/Detroit:20260317T153000
SUMMARY:Presentation:Fast Summation for Geophysical Fluid Dynamics
DESCRIPTION:Abstract: \n\nGeophysical fluid dynamics is the study of fluids on the sphere in which  the Coriolis force plays an important role\, and is of great interest and importance\, both theoretically and practically\, as the foundation of modern weather and climate modeling. Many problems in geophysical fluid dynamics can be formulated in a way to take advantage of convolutions and fast summation techniques\, which are methods for approximating integral transforms quickly.\n\nThe thesis starts by presenting a Cubed Sphere Fast Multipole Method (CSFMM) that is suitable for $O(N)$ fast summation on the sphere\, adapting techniques from the Barycentric Lagrange Tree Code and the Barycentric Lagrange Dual Tree Traversal Fast Multipole Method for use for problems with spherical geometry\, and showing a number of speed up and error results\, demonstrating that the CSFMM is both fast and accurate for a variety of different problems. This technique is then applied to three different problems.\n\nThe first problem is that of computing Self Attraction and Loading in ocean models\, an important term encompassing physical effects relating to the gravitation of water and the elastic deformation of the Earth. The computation of Self Attraction and Loading has been challenging in the past\, mainly being computed using a scalar approximation or using spherical harmonics. This thesis demonstrates a new technique for computing the Self Attraction and Loading by deriving a new integral kernel for the problem\, before then discussing the implementation of this convolution and CSFMM in the Modular Ocean Model.\n\nThe next problem is that of solving the Barotropic Vorticity Equation with a Lagrangian Particle Method. This equation describes the conservation of potential vorticity for a two dimensional incompressible inviscid fluid on a rotating sphere. The fluid velocity can be related to the vorticity through a Biot-Savart law\, and when discretized using a Lagrangian particle Method\, the dynamics naturally admit a formulation as a $N$-body problem\, to which we apply the CSFMM. The accuracy and speed of this technique is tested\, before using the method to explore a variety of problems.\n\nLastly\, the previous solver is extended to work for the Shallow Water Equations\, an equation set which in addition to vorticity effects\, also allows for fluid divergence. For this problem\, the Biot-Savart law is more complicated\, incorporating both vorticity and divergence. This solver is then tested on a range of test cases to check for accuracy. Additionally\, this solver is designed for portability\, including with graphical processing units\, allowing for significant speedups.
UID:145244-21896922@events.umich.edu
URL:https://events.umich.edu/event/145244
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Dissertation,Graduate,Graduate Students,Mathematics
LOCATION:School of Education - 2228
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260217T204301
DTSTART;TZID=America/Detroit:20260317T160000
DTEND;TZID=America/Detroit:20260317T170000
SUMMARY:Lecture / Discussion:Colloquium: Accelerating Earth system simulation
DESCRIPTION:Providing high-quality “actionable information” for strategic risk analysis is amongst the primary goals of the U.S. Dept. of Energy Exascale Earth System Model (E3SM). The simulation speed required to generate high-quality localized predictions at seasonal-to-decadal time scales is very high. In this talk we highlight some algorithmic design decisions that combine new research with classical numerical methods to enable E3SM’s ultra-high resolution configuration to achieve exascale performance and win the inaugural Gordon Bell Prize for Climate in 2023. \n\nOur design strategies tailor mathematical methods to both the unique features of the application space and to the heterogeneous computing architectures of exascale supercomputers. Ultimately\, these efforts doubled the speed of the most computationally demanding component of E3SM\, its atmosphere model. We will also discuss new and ongoing research associated with opportunities afforded by these performance gains.
UID:145352-21897161@events.umich.edu
URL:https://events.umich.edu/event/145352
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260217T153622
DTSTART;TZID=America/Detroit:20260318T153000
DTEND;TZID=America/Detroit:20260318T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar -- Prym-Brill-Noether Theory for Covers of Elliptic Curves
DESCRIPTION:Brill-Noether theory is the study of algebraic curves and their maps to projective space.  A series of results in the 80's describe the Brill-Noether theory of sufficiently general curves.  More recently\, many researchers have become interested in the Brill-Noether theory of special curves -- if a curve admits one unusual map to projective space\, what does that imply about the existence and behavior of other such maps?  We will begin with a gentle introduction to this field of study\, and then survey some of the recent results on special curves.  We will conclude with recent results on etale double covers of curves -- a subject known as Prym-Brill-Noether theory -- and a surprising relation to the combinatorics of Coxeter groups.
UID:142762-21891345@events.umich.edu
URL:https://events.umich.edu/event/142762
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251110T171856
DTSTART;TZID=America/Detroit:20260318T160000
DTEND;TZID=America/Detroit:20260318T172000
SUMMARY:Workshop / Seminar:Geometry-Topology RTG Seminar: TBA
DESCRIPTION:Abstract: TBA
UID:141713-21889224@events.umich.edu
URL:https://events.umich.edu/event/141713
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260204T130217
DTSTART;TZID=America/Detroit:20260318T160000
DTEND;TZID=America/Detroit:20260318T170000
SUMMARY:Workshop / Seminar:Bid-Ask Martingale Optimal Transport
DESCRIPTION:Martingale Optimal Transport (MOT) provides a framework for robust pricing and hedging of illiquid derivatives. Classically\, MOT enforces exact calibration of model marginals to mid-prices of vanilla options\, ignoring the uncertainty of bid-ask spreads and thus underestimating model risk. To address this\, we introduce Bid-Ask Martingale Optimal Transport (BAMOT)\, where model marginals are constrained by distinct bid and ask distributions via convex order. We establish strong duality and prove convergence to the MOT limit as spreads vanish\, quantifying the rate using the novel \"bid-ask distance\". We support our findings with examples\, and finally discuss avenues for future research.\n\nJoint work with Bryan Liang (Bloomberg)\, Marcel Nutz (Columbia)\, and Shunan Sheng (Columbia).
UID:145064-21896609@events.umich.edu
URL:https://events.umich.edu/event/145064
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260125T202826
DTSTART;TZID=America/Detroit:20260319T154500
DTEND;TZID=America/Detroit:20260319T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Learning Seminar: Admissible resolutions
DESCRIPTION:Discuss the material in Section 4 of the paper. The main goals are to explain the statement of Theorem 3.15\, to sketch the ideas in the proof\, and to give some examples.
UID:144458-21895384@events.umich.edu
URL:https://events.umich.edu/event/144458
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260305T084917
DTSTART;TZID=America/Detroit:20260320T143000
DTEND;TZID=America/Detroit:20260320T153000
SUMMARY:Workshop / Seminar:On Fox’s trapezoidal conjecture (Combinatorics Seminar)
DESCRIPTION:Fox’s trapezoidal conjecture from 1962 states that the absolute values of the coefficients of the Alexander polynomial of alternating links form a trapezoidal sequence. Stoimenow strengthened Fox’s conjecture to log-concavity (without internal zeros) in 2005. Fox’s conjecture remains open in general with special cases settled by Hartley (1979) for two-bridge knots\, by Murasugi (1985) for a family of algebraic alternating links\, and Ozsvath and Szabo (2003) for genus 2 alternating knots\, among others. We will show how to prove Fox’s conjecture for special alternating links by lifting the Alexander polynomials of these links to\"nice” multivariate polynomials with 0\,1 coefficients. The terms of the lift correspond to integer points of a generalized permutahedron\, allowing for an application of the theory of Lorentzian polynomials developed by Branden and Huh (2019). This talk is based on joint works with Hafner and Vidinas.
UID:141923-21889638@events.umich.edu
URL:https://events.umich.edu/event/141923
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260304T095200
DTSTART;TZID=America/Detroit:20260320T150000
DTEND;TZID=America/Detroit:20260320T160000
SUMMARY:Lecture / Discussion:AIM Seminar:  Particle Mechanics Applications to Hazards in Civil Engineering
DESCRIPTION:Abstract:  Many of the natural hazards that threaten infrastructure and communities are driven by particulate interactions and particle kinematics. Land surface hazards like landslides and earthquake surface rupture occur in particulate systems of sands and rocks. Coastal scour and erosion occur one grain of sand at a time. Even wildfire spread into communities at the wildland urban interface occurs through the wind-driven flow of millions of discrete firebrand particles. This presentation will showcase how our research group represents various hazards as fundamentally discontinuous particulate systems using the discrete element method (DEM). DEM uses relatively simple contact physics to model how discrete particles interact and the motions of these particles resulting from their interactions. With the aid of modern high-performance computing systems\, we model discontinuous systems composed of millions of discrete particles\, including particles of irregular shape and size to elucidate how these factors affect the macroscopic properties traditionally used to characterize material behaviors in constitutive models. Our simulations show how with simple boundary conditions\, we can replicate complex mechanics of landslide runout\, shear rupture propagation through soil\, and firebrand accumulation in simulations validated not only on laboratory experiments but also on observed case histories. Our virtual experiments advance the understanding of natural hazards in a broad range of fields including civil engineering\, mechanics\, geology\, and seismology. \n\nContact:  Silas Alben
UID:141901-21889616@events.umich.edu
URL:https://events.umich.edu/event/141901
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260205T131919
DTSTART;TZID=America/Detroit:20260323T160000
DTEND;TZID=America/Detroit:20260323T170000
SUMMARY:Workshop / Seminar:GLNT: TBA
DESCRIPTION:Abstract: TBA
UID:143322-21892901@events.umich.edu
URL:https://events.umich.edu/event/143322
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260301T160351
DTSTART;TZID=America/Detroit:20260324T160000
DTEND;TZID=America/Detroit:20260324T170000
SUMMARY:Lecture / Discussion:Colloquium: Homological stability of moduli spaces
DESCRIPTION:Homological stability has emerged over the past decades as an organizing principle in topology and beyond. Broadly speaking\, many sequences of moduli spaces exhibit the striking phenomenon that their homology stabilizes as the underlying complexity grows. One of the most remarkable achievements of this paradigm is the proof of the Mumford conjecture by Madsen and Weiss\, which identifies the stable rational cohomology of the moduli space of algebraic curves. This resolves a question of central importance in algebraic geometry and geometric group theory\; all existing proofs use significant amounts of homotopy theory. In this lecture I will survey some ideas behind homological stability and the ubiquity of stability phenomena\, and discuss consequences and applications\, particularly in algebraic geometry and number theory.
UID:141892-21889604@events.umich.edu
URL:https://events.umich.edu/event/141892
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260228T101529
DTSTART;TZID=America/Detroit:20260325T153000
DTEND;TZID=America/Detroit:20260325T165000
SUMMARY:Workshop / Seminar:Michigan Lectures in Algebraic Geometry and Topology: Stable homology of moduli spaces and moments in families of L-functions over function fields
DESCRIPTION:In recent years\, several problems in arithmetic statistics that seem completely intractable over number fields\, have been resolved in the case of function fields by geometric methods\; more specifically\, by casting the problem in terms of the homology of a suitable moduli space of algebraic curves\, and understanding the homology asymptotically. Perhaps the most notable is the work of Ellenberg-Venkatesh-Westerland and Landesman-Levy on Cohen-Lenstra heuristics. \n\nI will talk about joint work with Bergström-Diaconu-Westerland and Miller-Patzt-Randal-Williams\, where this paradigm is applied to another problem in analytic number theory. There is a \"recipe\" due to Conrey-Farmer-Keating-Rubinstein-Snaith (CFKRS) which allows for precise predictions for the asymptotics of moments of many different families of L-functions. We consider the family of all L-functions attached to hyperelliptic curves over some fixed finite field\, in which case we are able to prove the CFKRS predictions for all moments\, for all sufficiently large (but fixed) q.\nWe do this by studying the homology of the moduli space of hyperelliptic curves\, with symplectic coefficients: we compute the stable homology groups\, together with their structure as Galois representations\, and prove a novel homological stability theorem in this setting. The proofs use homotopical ideas developed in connection with the Mumford conjecture\, Borel's work on stable real cohomology of arithmetic groups\, logarithmic algebraic geometry\, and cellular E_k-algebras.
UID:141934-21889651@events.umich.edu
URL:https://events.umich.edu/event/141934
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,seminar
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260224T133411
DTSTART;TZID=America/Detroit:20260325T160000
DTEND;TZID=America/Detroit:20260325T170000
SUMMARY:Workshop / Seminar:Mean–Variance Portfolio Selection by Continuous-Time Reinforcement Learning: Algorithms\, Regret Analysis\, and Empirical Study
DESCRIPTION:We study continuous-time mean–variance portfolio selection in markets where stock prices are diffusion processes driven by observable factors that are also diffusion processes\, yet the coefficients of these processes are unknown. Based on the recently developed reinforcement learning (RL) theory for diffusion processes\, we present a general data-driven RL algorithm that learns the pre-committed investment strategy directly without attempting to learn or estimate the market coefficients. For multi-stock Black–Scholes markets without factors\, we further devise a baseline algorithm and prove its performance guarantee by deriving a sublinear regret bound in terms of the Sharpe ratio. We then carry out an extensive empirical study implementing this algorithm to compare its performance and trading outcomes\, evaluated under a host of common metrics\, with a large number of widely employed portfolio allocation strategies on S&P 500 constituents. The results demonstrate that the proposed continuous-time RL strategy is consistently among the best\, especially in a volatile bear market\, and decisively outperforms the model-based continuous-time counterparts by significant margins. Joint work with Yilie Huang and Yanwei Jia.
UID:138042-21881387@events.umich.edu
URL:https://events.umich.edu/event/138042
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260112T103427
DTSTART;TZID=America/Detroit:20260326T143000
DTEND;TZID=America/Detroit:20260326T163000
SUMMARY:Workshop / Seminar:Student Real Analysis Reading Group
DESCRIPTION:The Student Real Analysis Reading Group facilitated by Siwei Wang will meet every Thursday from 2:30–4:30 PM in East Hall 5822 from Thursday\, January 15 - April 16\, 2026.
UID:143702-21893680@events.umich.edu
URL:https://events.umich.edu/event/143702
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Undergraduate Students
LOCATION:East Hall - 5822
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260228T101635
DTSTART;TZID=America/Detroit:20260326T153000
DTEND;TZID=America/Detroit:20260326T165000
SUMMARY:Workshop / Seminar:Michigan Lectures in Algebraic Geometry and Topology: Stable homology of moduli spaces and moments in families of L-functions over function fields
DESCRIPTION:In recent years\, several problems in arithmetic statistics that seem completely intractable over number fields\, have been resolved in the case of function fields by geometric methods\; more specifically\, by casting the problem in terms of the homology of a suitable moduli space of algebraic curves\, and understanding the homology asymptotically. Perhaps the most notable is the work of Ellenberg-Venkatesh-Westerland and Landesman-Levy on Cohen-Lenstra heuristics. \n\nI will talk about joint work with Bergström-Diaconu-Westerland and Miller-Patzt-Randal-Williams\, where this paradigm is applied to another problem in analytic number theory. There is a \"recipe\" due to Conrey-Farmer-Keating-Rubinstein-Snaith (CFKRS) which allows for precise predictions for the asymptotics of moments of many different families of L-functions. We consider the family of all L-functions attached to hyperelliptic curves over some fixed finite field\, in which case we are able to prove the CFKRS predictions for all moments\, for all sufficiently large (but fixed) q.\nWe do this by studying the homology of the moduli space of hyperelliptic curves\, with symplectic coefficients: we compute the stable homology groups\, together with their structure as Galois representations\, and prove a novel homological stability theorem in this setting. The proofs use homotopical ideas developed in connection with the Mumford conjecture\, Borel's work on stable real cohomology of arithmetic groups\, logarithmic algebraic geometry\, and cellular E_k-algebras.
UID:141935-21889652@events.umich.edu
URL:https://events.umich.edu/event/141935
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,seminar
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260118T164626
DTSTART;TZID=America/Detroit:20260326T160000
DTEND;TZID=America/Detroit:20260326T170000
SUMMARY:Workshop / Seminar:GEOMETRY SEMINAR    tab
DESCRIPTION:TBA
UID:144087-21894637@events.umich.edu
URL:https://events.umich.edu/event/144087
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260125T125100
DTSTART;TZID=America/Detroit:20260326T160000
DTEND;TZID=America/Detroit:20260326T170000
SUMMARY:Workshop / Seminar:DE Seminar:
DESCRIPTION:TBA
UID:144439-21895355@events.umich.edu
URL:https://events.umich.edu/event/144439
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260215T180234
DTSTART;TZID=America/Detroit:20260326T170000
DTEND;TZID=America/Detroit:20260326T183000
SUMMARY:Workshop / Seminar:RTG NT:
DESCRIPTION:2.3-2.5 of Darmon-Vonk
UID:145487-21897402@events.umich.edu
URL:https://events.umich.edu/event/145487
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Number Theory
LOCATION:East Hall - 2866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251208T104442
DTSTART;TZID=America/Detroit:20260327T143000
DTEND;TZID=America/Detroit:20260327T153000
SUMMARY:Workshop / Seminar:Combinatorics Seminar -- TBA
DESCRIPTION:TBD
UID:142233-21890251@events.umich.edu
URL:https://events.umich.edu/event/142233
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260305T085806
DTSTART;TZID=America/Detroit:20260327T150000
DTEND;TZID=America/Detroit:20260327T160000
SUMMARY:Lecture / Discussion:AIM Seminar:  Title TBA
DESCRIPTION:Abstract: TBA Contact: Zhiyan Ding
UID:141902-21889617@events.umich.edu
URL:https://events.umich.edu/event/141902
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260228T101758
DTSTART;TZID=America/Detroit:20260327T160000
DTEND;TZID=America/Detroit:20260327T170000
SUMMARY:Workshop / Seminar:Michigan Lectures in Algebraic Geometry and Topology: Stable homology of moduli spaces and moments in families of L-functions over function fields
DESCRIPTION:In recent years\, several problems in arithmetic statistics that seem completely intractable over number fields\, have been resolved in the case of function fields by geometric methods\; more specifically\, by casting the problem in terms of the homology of a suitable moduli space of algebraic curves\, and understanding the homology asymptotically. Perhaps the most notable is the work of Ellenberg-Venkatesh-Westerland and Landesman-Levy on Cohen-Lenstra heuristics. \n\nI will talk about joint work with Bergström-Diaconu-Westerland and Miller-Patzt-Randal-Williams\, where this paradigm is applied to another problem in analytic number theory. There is a \"recipe\" due to Conrey-Farmer-Keating-Rubinstein-Snaith (CFKRS) which allows for precise predictions for the asymptotics of moments of many different families of L-functions. We consider the family of all L-functions attached to hyperelliptic curves over some fixed finite field\, in which case we are able to prove the CFKRS predictions for all moments\, for all sufficiently large (but fixed) q.\nWe do this by studying the homology of the moduli space of hyperelliptic curves\, with symplectic coefficients: we compute the stable homology groups\, together with their structure as Galois representations\, and prove a novel homological stability theorem in this setting. The proofs use homotopical ideas developed in connection with the Mumford conjecture\, Borel's work on stable real cohomology of arithmetic groups\, logarithmic algebraic geometry\, and cellular E_k-algebras.
UID:141936-21889653@events.umich.edu
URL:https://events.umich.edu/event/141936
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,seminar
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251214T095055
DTSTART;TZID=America/Detroit:20260330T160000
DTEND;TZID=America/Detroit:20260330T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:142738-21891317@events.umich.edu
URL:https://events.umich.edu/event/142738
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Seminar
LOCATION:East Hall - EH 1866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260307T204322
DTSTART;TZID=America/Detroit:20260330T160000
DTEND;TZID=America/Detroit:20260330T170000
SUMMARY:Workshop / Seminar:GLNT: How you think on a function defined on 0\,1\,…\,N-1?
DESCRIPTION:Abstract: Between thousand to million times per day\, your cellphone calculates the Fourier Transform (FT) of certain complex valued functions defined on 0\,1\,…\,N-1\, with N large (order of magnitude of thousands and more). \nThe calculation is done using the Fast Fourier Transform (FFT) - discovered by Cooley--Tukey in 1965 and by Gauss in 1805. \n\nIn the lecture I want to advertise a beautiful way—due to Auslander-Tolimieri—to obtain the FFT as a natural consequence of an answer to the following:\n\nQuestion: How to think on the space of functions on the set 0\,1\,…\,N-1?                              \n\nEngineers tell us that there are two answers for this question:\n\n(A) as functions on that set\, where 0\,1\,…\,N-1 regarded as times\; and\,\n\n(B) as functions on that set\, where 0\,1\,…\,N-1 regarded frequencies\;\n\nand then the FT is an operator translating between the two spaces. \n\nIn the lecture\, I will explain that there is another answer\, i.e.\, a not so well-known third space (C)\, of arithmetic nature\, that also gives an answer to the above question\, and then the FFT appears simply as the composition of two operators: \nthe one translating between spaces (A) and (C)\, and the one that translates (C) to (B).\n\nRemark: The lecture is prepared to be understood by undergraduate students (from any department) who took basic course in linear algebra.
UID:143323-21892902@events.umich.edu
URL:https://events.umich.edu/event/143323
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260201T180218
DTSTART;TZID=America/Detroit:20260331T160000
DTEND;TZID=America/Detroit:20260331T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:139160-21884971@events.umich.edu
URL:https://events.umich.edu/event/139160
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260125T203125
DTSTART;TZID=America/Detroit:20260402T154500
DTEND;TZID=America/Detroit:20260402T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Learning Seminar: From algebraicity to quadratic splittings of matroids
DESCRIPTION:Explain the proof of the key geometric result (Theorem 1.8 of the paper) behind the main theorem.
UID:144459-21895385@events.umich.edu
URL:https://events.umich.edu/event/144459
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260213T175210
DTSTART;TZID=America/Detroit:20260402T160000
DTEND;TZID=America/Detroit:20260402T173000
SUMMARY:Workshop / Seminar:RTG NT:
DESCRIPTION:3.1-3.2 of Darmon-Vonk
UID:145488-21897403@events.umich.edu
URL:https://events.umich.edu/event/145488
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Number Theory
LOCATION:East Hall - 1060
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251208T104410
DTSTART;TZID=America/Detroit:20260403T143000
DTEND;TZID=America/Detroit:20260403T153000
SUMMARY:Workshop / Seminar:Combinatorics Seminar -- TBA
DESCRIPTION:TBD
UID:142448-21890967@events.umich.edu
URL:https://events.umich.edu/event/142448
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260305T085828
DTSTART;TZID=America/Detroit:20260403T150000
DTEND;TZID=America/Detroit:20260403T160000
SUMMARY:Lecture / Discussion:AIM Seminar:  Open Slot
DESCRIPTION:
UID:141903-21889618@events.umich.edu
URL:https://events.umich.edu/event/141903
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260113T160551
DTSTART;TZID=America/Detroit:20260403T160000
DTEND;TZID=America/Detroit:20260403T170000
SUMMARY:Workshop / Seminar:Topology seminar: TBA
DESCRIPTION:Abstract: TBA
UID:143860-21894132@events.umich.edu
URL:https://events.umich.edu/event/143860
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251209T162308
DTSTART;TZID=America/Detroit:20260406T160000
DTEND;TZID=America/Detroit:20260406T170000
SUMMARY:Livestream / Virtual:TBA
DESCRIPTION:TBA
UID:142525-21891083@events.umich.edu
URL:https://events.umich.edu/event/142525
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Seminar,Virtual
LOCATION:Off Campus Location
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260120T151250
DTSTART;TZID=America/Detroit:20260406T160000
DTEND;TZID=America/Detroit:20260406T170000
SUMMARY:Workshop / Seminar:GLNT: TBA (reserved)
DESCRIPTION:Abstract: TBA
UID:143324-21892903@events.umich.edu
URL:https://events.umich.edu/event/143324
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251119T181224
DTSTART;TZID=America/Detroit:20260407T160000
DTEND;TZID=America/Detroit:20260407T170000
SUMMARY:Workshop / Seminar:Colloquium: TBA
DESCRIPTION:TBA
UID:137450-21880291@events.umich.edu
URL:https://events.umich.edu/event/137450
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260104T020825
DTSTART;TZID=America/Detroit:20260408T153000
DTEND;TZID=America/Detroit:20260408T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:143156-21892330@events.umich.edu
URL:https://events.umich.edu/event/143156
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260224T133525
DTSTART;TZID=America/Detroit:20260408T160000
DTEND;TZID=America/Detroit:20260408T170000
SUMMARY:Workshop / Seminar:Robust and Risk-Sensitive Acceleration in Gradient Methods
DESCRIPTION:First-order methods such as gradient descent (GD) are foundational in optimization. In unconstrained problems with exact gradients\, momentum-based methods—most notably Nesterov’s accelerated gradient descent (AGD) and Polyak’s heavy-ball (HB) method—achieve faster convergence by improving dependence on the condition number. However\, this acceleration comes at a cost: momentum amplifies gradient noise\, making these methods less robust than GD under standard parameter choices and requiring more accurate gradient estimates to attain comparable accuracy. Similar challenges arise in convex and nonconvex min–max optimization.\nMotivated by applications in machine learning\, this talk studies unconstrained and min–max optimization under deterministic\, unbiased stochastic\, and biased stochastic gradient noise. I will present new algorithms that achieve optimal robustness against different noise types\, using control-theoretic tools such as the H_2​ norm\, the H_∞​ norm\, and the risk-sensitivity index\, together with coherent risk measures. I will also discuss worst-case noise constructions and high-probability convergence guarantees. This perspective builds a bridge between optimization and robust control theory and enables the design of noise-robust and risk-sensitive accelerated methods.\nRepresentative Publications:\nM. Gürbüzbalaban\, Y. Syed\, N. S. Aybat\, Accelerated gradient methods with biased gradient estimates: Risk sensitivity\, high-probability guarantees\, and large deviation bounds\, Journal of Nonlinear and Variational Analysis\, 2026 (Special Issue). https://jnva.biemdas.com/archives/2927\nM. Gürbüzbalaban\, Robustly Stable Accelerated Momentum Methods with a Near-Optimal L_2​ Gain and H_∞​ Performance\, Mathematics of Operations Research\, 2025.\nhttps://pubsonline.informs.org/doi/abs/10.1287/moor.2023.0321\nB. Can and M. Gürbüzbalaban\, Entropic risk-averse generalized momentum methods\, Optimization Methods and Software\, 2025. https://www.tandfonline.com/doi/abs/10.1080/10556788.2025.2549356
UID:141373-21888712@events.umich.edu
URL:https://events.umich.edu/event/141373
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260128T162405
DTSTART;TZID=America/Detroit:20260408T160000
DTEND;TZID=America/Detroit:20260408T172000
SUMMARY:Workshop / Seminar:RTG Geometry Topology Dynamics Seminar        TBA
DESCRIPTION:TBA
UID:144728-21895778@events.umich.edu
URL:https://events.umich.edu/event/144728
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260112T103427
DTSTART;TZID=America/Detroit:20260409T143000
DTEND;TZID=America/Detroit:20260409T163000
SUMMARY:Workshop / Seminar:Student Real Analysis Reading Group
DESCRIPTION:The Student Real Analysis Reading Group facilitated by Siwei Wang will meet every Thursday from 2:30–4:30 PM in East Hall 5822 from Thursday\, January 15 - April 16\, 2026.
UID:143702-21893681@events.umich.edu
URL:https://events.umich.edu/event/143702
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Undergraduate Students
LOCATION:East Hall - 5822
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260125T203356
DTSTART;TZID=America/Detroit:20260409T154500
DTEND;TZID=America/Detroit:20260409T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Learning Seminar: Albanese graphs
DESCRIPTION:Discuss the material in Section 5 of the paper. In particular\, define Albanese graphs\, prove their universal property\, and give some examples. Then state Theorem 5.10 and explain the proof.
UID:144460-21895386@events.umich.edu
URL:https://events.umich.edu/event/144460
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260128T162126
DTSTART;TZID=America/Detroit:20260409T160000
DTEND;TZID=America/Detroit:20260409T170000
SUMMARY:Workshop / Seminar:GEOMETRY SEMINAR.  TBA
DESCRIPTION:TBA
UID:144724-21895766@events.umich.edu
URL:https://events.umich.edu/event/144724
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260213T175348
DTSTART;TZID=America/Detroit:20260409T160000
DTEND;TZID=America/Detroit:20260409T173000
SUMMARY:Workshop / Seminar:RTG NT:
DESCRIPTION:3.3-3.4 of Darmon-Vonk
UID:145489-21897404@events.umich.edu
URL:https://events.umich.edu/event/145489
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Number Theory
LOCATION:East Hall - 1060
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260224T130457
DTSTART;TZID=America/Detroit:20260410T143000
DTEND;TZID=America/Detroit:20260410T153000
SUMMARY:Workshop / Seminar:Representation stability via Young symmetrizers and a new ribbon basis for the rank-selected homology of the partition lattice (Combinatorics seminar)
DESCRIPTION:In this talk\, we will begin with a quick review of group actions on posets\, rank-selected homology of posets\, representation stability\, and a nice way of interpreting the rank-selected homology of the Boolean lattice as a Specht module of ribbon shape.  This interpretation allows us to prove a sharp representation stability bound for the rank-selected homology of the Boolean lattice.  We then describe a new ​ribbon basis for the rank-selected homology of any geometric lattice.  In the case of the partition lattice\, this ribbon basis interacts with Young symmetrizers in much the way a traditional Specht module would.   Using this basis\, we prove a sharp representation stability bound for the rank-selected homology of the partititon lattice\, a bound that had  previously been conjectured by the speaker and Vic Reiner.   This is joint work with Sheila Sundaram.
UID:140872-21887755@events.umich.edu
URL:https://events.umich.edu/event/140872
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251109T201247
DTSTART;TZID=America/Detroit:20260410T150000
DTEND;TZID=America/Detroit:20260410T160000
SUMMARY:Lecture / Discussion:AIM Seminar:  Title TBA
DESCRIPTION:Abstract:  TBA.\n\nContact:  Silas Alben
UID:141683-21889181@events.umich.edu
URL:https://events.umich.edu/event/141683
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1024
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260106T145054
DTSTART;TZID=America/Detroit:20260413T160000
DTEND;TZID=America/Detroit:20260413T170000
SUMMARY:Workshop / Seminar:GLNT: TBA
DESCRIPTION:Abstract: TBA
UID:143325-21892904@events.umich.edu
URL:https://events.umich.edu/event/143325
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20250919T094546
DTSTART;TZID=America/Detroit:20260414T123000
DTEND;TZID=America/Detroit:20260414T133000
SUMMARY:Lecture / Discussion:IBL Lunch
DESCRIPTION:Come talk about teaching with IBL\, interactive\, and other active teaching methods over lunch. Bring teaching anecdotes\, thoughts\, and your appetite. Lunch will be provided.
UID:138237-21882657@events.umich.edu
URL:https://events.umich.edu/event/138237
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2075
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260131T225436
DTSTART;TZID=America/Detroit:20260414T160000
DTEND;TZID=America/Detroit:20260414T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:144881-21896089@events.umich.edu
URL:https://events.umich.edu/event/144881
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260112T231755
DTSTART;TZID=America/Detroit:20260415T153000
DTEND;TZID=America/Detroit:20260415T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:143792-21894022@events.umich.edu
URL:https://events.umich.edu/event/143792
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251014T213055
DTSTART;TZID=America/Detroit:20260415T160000
DTEND;TZID=America/Detroit:20260415T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBS
UID:140707-21887518@events.umich.edu
URL:https://events.umich.edu/event/140707
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260118T164936
DTSTART;TZID=America/Detroit:20260415T160000
DTEND;TZID=America/Detroit:20260415T172000
SUMMARY:Workshop / Seminar:RTG Topology Geometry Dynamics. TBA
DESCRIPTION:TBA
UID:144093-21894645@events.umich.edu
URL:https://events.umich.edu/event/144093
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260125T203543
DTSTART;TZID=America/Detroit:20260416T154500
DTEND;TZID=America/Detroit:20260416T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Learning Seminar: Cographic matroid criterion
DESCRIPTION:Explain the proof of the key combinatorial result (Theorem 1.9 of the paper) behind the main theorem.
UID:144461-21895387@events.umich.edu
URL:https://events.umich.edu/event/144461
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260305T102627
DTSTART;TZID=America/Detroit:20260416T160000
DTEND;TZID=America/Detroit:20260416T173000
SUMMARY:Lecture / Discussion:Professors Jie (Jackie) Li\, Ralf J. Spatzier\, and Nicholas A. Valentino\, Collegiate Professorship Inaugural Lecture
DESCRIPTION:This event will take place both in person and virtually.\n\nProfessor Jie (Jackie) Li\nRodney C. Ewing Collegiate Professor of Earth and Planetary Sciences\n\nLecture Title: From Diamonds to Dynamo: How Earth Stays Magnetic? \n\nLecture Abstract: Beneath the dancing lights of the aurora lies a 4-billion-year survival story. By recreating the extreme pressures and temperatures of Earth’s core with gem-quality diamonds and tightly focused lasers\, we peer into our planet’s deepest engine. There\, we uncover how a cooling Earth overcame major energy crises by switching its fuel source\, thereby sustaining the magnetic shield that protects life.\n\nProfessor Ralf J. Spatzier\nGopal Prasad Collegiate Professor of Mathematics\n\nLecture Title: Symmetry In Geometry and Dynamics:\nThe Role of Intuition in Mathematics Research\n\nLecture Abstract: How does mathematics progress? And how do\nmathematicians actually make progress?\n\nWe are actually making lots of progress\, and I hope I can\nconvince you! But there are many ways we achieve this. Let\nme tell you about it in my own case.\nLeading Question: How do I make progress?\n1: By working hard long hours in my office with my computer?\n2: By doing difficult calculations with pen and paper?\n3: By going for a walk?\nI will try to illuminate how fundamental progress happened in my\nown limited experience. It involved grand ideas such as\n“symmetry” and how it limits possibilities. A classical example\nare the Platonic solids\, i.e. convex regular polyhedra with\ncongruent faces (symmetry). Turns out there are only five.\nWhen a few mild harmless assumptions greatly limit the possible\nobjects and even completely determine a system\, we speak of\n“RIGIDITY”\, just as in the case of the platonic solids.\nIn my own research\, symmetry is an overriding principle\, leading\nto rigidity in geometry. As it happened - and after many walks -\nthis also inspired ideas for rigidity in dynamical systems with\nsymmetry.\nSymmetry and extremal properties have played a major role in\nmathematics for a long time. While I will start to discuss this in\n\nthe context of some Riemannian geometry\, I will emphasize more\nrecent work on dynamical systems. Here symmetry expresses\nitself in terms of having non-trivially commuting maps or flows\,\nor an action of some group with complicated relations. Case in\npoint are actions of semisimple Lie groups\, especially ones of\nhigher rank\, e.g. SL(n\,R) with n at least 3. This is the so-called\nZimmer program. I will hint at some recent highlights.\n\nProfessor Nicholas A. Valentino\nDonald R. Kinder Collegiate Professor of Political Science\n\nLecture Title: The Big River: Explorations on the Role of Race in Politics\n\nLecture Abstract: My work owes most of its inspiration to the Symbolic Politics Theory proposed originally by David Sears at UCLA in the 1980s and further developed by Donald Kinder here at Michigan. The central claim of that theory is that symbolic predispositions- partisanship\, racial identity\, prejudice- and the deeply rooted emotions associated with these attachments drive many political choices and behavior much more powerfully than material self-interest. The theory originally focused on explaining policy opinions and behaviors with direct and explicit consequences for the distribution of rights and resources between racial groups in America\, and even more narrowly on the black-white divides over affirmative action and the election of African American candidates. One of my main goals has been to broaden this exploration to political domains explicitly unrelated to race\, such as crime\, immigration\, government surveillance\, electoral laws\, and so on. In general\, my collaborators and I find that deeply rooted racial attitudes\, identities\, and emotional processes profoundly impact nearly every domain of politics. \n\nIf you are unable to join us in person\, please click the link below to join the webinar.\nJoin from PC\, Mac\, iPad\, or Android:\nhttps://umich.zoom.us/j/95783933422\n\nPhone one-tap:\n+13092053325\,\,95783933422# US\n+13126266799\,\,95783933422# US (Chicago)\n\nJoin via audio:\n+1 309 205 3325 US\n+1 312 626 6799 US (Chicago)\n+1 646 876 9923 US (New York)\n+1 646 931 3860 US\n+1 301 715 8592 US (Washington DC)\n+1 305 224 1968 US\n+1 719 359 4580 US\n+1 253 205 0468 US\n+1 253 215 8782 US (Tacoma)\n+1 346 248 7799 US (Houston)\n+1 360 209 5623 US\n+1 386 347 5053 US\n+1 507 473 4847 US\n+1 564 217 2000 US\n+1 669 444 9171 US\n+1 669 900 6833 US (San Jose)\n+1 689 278 1000 US\n+1 778 907 2071 Canada\n+1 780 666 0144 Canada\n+1 204 272 7920 Canada\n+1 438 809 7799 Canada\n+1 587 328 1099 Canada\n+1 647 374 4685 Canada\n+1 647 558 0588 Canada\nWebinar ID: 957 8393 3422\nInternational numbers available: https://umich.zoom.us/u/azI9zGShx
UID:145841-21897942@events.umich.edu
URL:https://events.umich.edu/event/145841
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:AEM Featured,Lecture
LOCATION:Weiser Hall - 10th Floor
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260115T122904
DTSTART;TZID=America/Detroit:20260417T143000
DTEND;TZID=America/Detroit:20260417T153000
SUMMARY:Workshop / Seminar:Combinatorics seminar -- TBA
DESCRIPTION:TBD
UID:143962-21894327@events.umich.edu
URL:https://events.umich.edu/event/143962
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260106T122725
DTSTART;TZID=America/Detroit:20260417T150000
DTEND;TZID=America/Detroit:20260417T160000
SUMMARY:Lecture / Discussion:AIM Seminar:  Title TBA
DESCRIPTION:Abstract:  TBA\n\nContact:  Zhiyan Ding
UID:141904-21889619@events.umich.edu
URL:https://events.umich.edu/event/141904
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260128T162847
DTSTART;TZID=America/Detroit:20260417T160000
DTEND;TZID=America/Detroit:20260417T170000
SUMMARY:Workshop / Seminar:TOPOLOGY SEMINAR. TBA
DESCRIPTION:TBA
UID:144730-21895779@events.umich.edu
URL:https://events.umich.edu/event/144730
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260227T234459
DTSTART;TZID=America/Detroit:20260420T160000
DTEND;TZID=America/Detroit:20260420T170000
SUMMARY:Workshop / Seminar:TBD
DESCRIPTION:TBD
UID:146065-21898330@events.umich.edu
URL:https://events.umich.edu/event/146065
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Seminar
LOCATION:East Hall - EH 1866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251119T183929
DTSTART;TZID=America/Detroit:20260421T160000
DTEND;TZID=America/Detroit:20260421T170000
SUMMARY:Lecture / Discussion:Application workshop
DESCRIPTION:TBA
UID:140091-21886601@events.umich.edu
URL:https://events.umich.edu/event/140091
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260218T190733
DTSTART;TZID=America/Detroit:20260508T143000
DTEND;TZID=America/Detroit:20260508T153000
SUMMARY:Workshop / Seminar:Combinatorics seminar -- TBA
DESCRIPTION:TBA
UID:145710-21897721@events.umich.edu
URL:https://events.umich.edu/event/145710
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866 East Hall
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260126T151629
DTSTART;TZID=America/Detroit:20260602T080000
DTEND;TZID=America/Detroit:20260602T170000
SUMMARY:Conference / Symposium:2026 Byrne Conference on Stochastic Analysis in Finance and Insurance
DESCRIPTION:Attendance is free\, but online registration is required for all attendees who are not speakers. sites.google.com/umich.edu/byrneconference2026\n\nSpeakers \nAgostino Capponi (Columbia University)\nJean-François Chassagneux (Université Paris Cité)\nRama Cont (University of Oxford)\nGiorgio Ferrari (Bielefeld University)\nAnran Hu (Columbia University)\nKasper Larsen (Rutgers University)\nJin Ma (University of Southern California)\nAlpar Meszaros (Durham University)\nHuyên Pham (École Polytechnique)\nDylan Possamaï (ETH Zürich)\nJustin Sirignano (University of Oxford)\nRenyuan Xu (Stanford University)\nPhillip Yam (Chinese University of Hong Kong)\nThaleia Zariphopoulou (University of Texas at Austin)\nYufei Zhang (Imperial College London)\n\nVenue \nAll the talks will be held in Helmut Stern Auditorium at University of Michigan Museum of Art\, located at 525 S State St\, Ann Arbor\, MI 48109.\n\nOrganizers \nErhan Bayraktar (University of Michigan)\nAsaf Cohen (University of Michigan)\nIbrahim Ekren (University of Michigan)\n\nAcknowledgement\nThis meeting is partially funded by the Department of Mathematics\, Jack Byrne Center for Financial Mathematics and Risk Management\, and Curtis E. Huntington Honorary fund.
UID:144581-21895511@events.umich.edu
URL:https://events.umich.edu/event/144581
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:conference,In Person,Mathematics,Networking
LOCATION:Museum of Art - Helmut Stern Auditorium
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260126T151629
DTSTART;TZID=America/Detroit:20260603T080000
DTEND;TZID=America/Detroit:20260603T170000
SUMMARY:Conference / Symposium:2026 Byrne Conference on Stochastic Analysis in Finance and Insurance
DESCRIPTION:Attendance is free\, but online registration is required for all attendees who are not speakers. sites.google.com/umich.edu/byrneconference2026\n\nSpeakers \nAgostino Capponi (Columbia University)\nJean-François Chassagneux (Université Paris Cité)\nRama Cont (University of Oxford)\nGiorgio Ferrari (Bielefeld University)\nAnran Hu (Columbia University)\nKasper Larsen (Rutgers University)\nJin Ma (University of Southern California)\nAlpar Meszaros (Durham University)\nHuyên Pham (École Polytechnique)\nDylan Possamaï (ETH Zürich)\nJustin Sirignano (University of Oxford)\nRenyuan Xu (Stanford University)\nPhillip Yam (Chinese University of Hong Kong)\nThaleia Zariphopoulou (University of Texas at Austin)\nYufei Zhang (Imperial College London)\n\nVenue \nAll the talks will be held in Helmut Stern Auditorium at University of Michigan Museum of Art\, located at 525 S State St\, Ann Arbor\, MI 48109.\n\nOrganizers \nErhan Bayraktar (University of Michigan)\nAsaf Cohen (University of Michigan)\nIbrahim Ekren (University of Michigan)\n\nAcknowledgement\nThis meeting is partially funded by the Department of Mathematics\, Jack Byrne Center for Financial Mathematics and Risk Management\, and Curtis E. Huntington Honorary fund.
UID:144581-21895512@events.umich.edu
URL:https://events.umich.edu/event/144581
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:conference,In Person,Mathematics,Networking
LOCATION:Museum of Art - Helmut Stern Auditorium
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260126T151629
DTSTART;TZID=America/Detroit:20260604T080000
DTEND;TZID=America/Detroit:20260604T170000
SUMMARY:Conference / Symposium:2026 Byrne Conference on Stochastic Analysis in Finance and Insurance
DESCRIPTION:Attendance is free\, but online registration is required for all attendees who are not speakers. sites.google.com/umich.edu/byrneconference2026\n\nSpeakers \nAgostino Capponi (Columbia University)\nJean-François Chassagneux (Université Paris Cité)\nRama Cont (University of Oxford)\nGiorgio Ferrari (Bielefeld University)\nAnran Hu (Columbia University)\nKasper Larsen (Rutgers University)\nJin Ma (University of Southern California)\nAlpar Meszaros (Durham University)\nHuyên Pham (École Polytechnique)\nDylan Possamaï (ETH Zürich)\nJustin Sirignano (University of Oxford)\nRenyuan Xu (Stanford University)\nPhillip Yam (Chinese University of Hong Kong)\nThaleia Zariphopoulou (University of Texas at Austin)\nYufei Zhang (Imperial College London)\n\nVenue \nAll the talks will be held in Helmut Stern Auditorium at University of Michigan Museum of Art\, located at 525 S State St\, Ann Arbor\, MI 48109.\n\nOrganizers \nErhan Bayraktar (University of Michigan)\nAsaf Cohen (University of Michigan)\nIbrahim Ekren (University of Michigan)\n\nAcknowledgement\nThis meeting is partially funded by the Department of Mathematics\, Jack Byrne Center for Financial Mathematics and Risk Management\, and Curtis E. Huntington Honorary fund.
UID:144581-21895513@events.umich.edu
URL:https://events.umich.edu/event/144581
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:conference,In Person,Mathematics,Networking
LOCATION:Museum of Art - Helmut Stern Auditorium
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251020T001438
DTSTART;TZID=America/Detroit:20260923T153000
DTEND;TZID=America/Detroit:20260923T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:140882-21887766@events.umich.edu
URL:https://events.umich.edu/event/140882
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251028T082420
DTSTART;TZID=America/Detroit:20261110T160000
DTEND;TZID=America/Detroit:20261110T170000
SUMMARY:Lecture / Discussion:2026 Van Eenan Lectures: Ronnie Sircar
DESCRIPTION:TBA
UID:141176-21888297@events.umich.edu
URL:https://events.umich.edu/event/141176
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251028T082420
DTSTART;TZID=America/Detroit:20261111T160000
DTEND;TZID=America/Detroit:20261111T170000
SUMMARY:Lecture / Discussion:2026 Van Eenan Lectures: Ronnie Sircar
DESCRIPTION:TBA
UID:141176-21888405@events.umich.edu
URL:https://events.umich.edu/event/141176
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251028T082420
DTSTART;TZID=America/Detroit:20261112T160000
DTEND;TZID=America/Detroit:20261112T170000
SUMMARY:Lecture / Discussion:2026 Van Eenan Lectures: Ronnie Sircar
DESCRIPTION:TBA
UID:141176-21888406@events.umich.edu
URL:https://events.umich.edu/event/141176
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall
CONTACT:
END:VEVENT
END:VCALENDAR