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TZID:America/Detroit
TZURL:http://tzurl.org/zoneinfo/America/Detroit
X-LIC-LOCATION:America/Detroit
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20070311T020000
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TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20071104T020000
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END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260831T122442
DTSTART;TZID=America/Detroit:20260909T143000
DTEND;TZID=America/Detroit:20260909T153000
SUMMARY:Workshop / Seminar:Student Number Theory Seminar Planning Meeting
DESCRIPTION:Come to our first meeting of the semester (regardless of whether you're interested in giving a talk or not)! We'll discuss logistics\, possible talk ideas\, and set up a schedule for speakers this semester.
UID:151228-21911126@events.umich.edu
URL:https://events.umich.edu/event/151228
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T152138
DTSTART;TZID=America/Detroit:20260909T150000
DTEND;TZID=America/Detroit:20260909T160000
SUMMARY:Workshop / Seminar:Student DGT: Hitomezashi Hypersurfaces
DESCRIPTION:Hitomezashi\, a traditional Japanese stitching technique\, has recently attracted mathematical interest for its combinatorial and geometric properties. We generalize hitomezashi patterns to arbitrary dimensions\, allowing us to ask many (and answer several) questions about how a hitomezashi pattern's combinatorial data can determine its topological structure.
UID:151716-21912023@events.umich.edu
URL:https://events.umich.edu/event/151716
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260803T153429
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T170000
SUMMARY:Workshop / Seminar:Stability\, Approximation\, and Robustness of Optimal Policies in POMDPs
DESCRIPTION:In this talk\, I will focus on the stability\, approximation\, and robustness of optimal policies in partially observable Markov decision processes (POMDPs) under discounted and average cost criteria.\n\nI will begin with filter kernel perturbation under model change. I will establish how small perturbations in the transition or observation kernels lead to explicit\, nonasymptotic bounds on both the filter kernel and the performance of the induced policies. A primary result demonstrates that an optimal policy computed under an incorrect model remains near optimal for the true model\, with quantitatively bounded errors.\n\nBuilding on these stability concepts\, I will then talk about the average cost setting and describe conditions under which the nonlinear filter exhibits a contraction property. Under these conditions\, the vanishing discounted approach yields a solution to the average cost optimality equation\, guaranteeing the existence of a stationary optimal policy. Furthermore\, this provides explicit bounds that quantify the influence of initial prior distribution errors and model errors on long run performance.\n\nFinally\, I will present results on implementable approximations. I will introduce refined error bounds for finite window controllers and conclude by discussing how Q learning can be utilized through either finite window or the quantization of the belief process to obtain near optimal policies for both discounted and average cost criteria.
UID:149581-21906722@events.umich.edu
URL:https://events.umich.edu/event/149581
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260901T081333
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T170000
SUMMARY:Workshop / Seminar:Probability and Analysis Seminar: A Riemann-Hilbert approach to Dyson Brownian motion and Gaussian multiplicative chaos
DESCRIPTION:Abstract: The connection between random matrices and Gaussian multiplicative chaos (GMC) has been studied intensively since the work of Fyodorov and Keating (2014). There has been recent interest in the appearance of GMC in dynamical ensembles of random matrices and their eigenvalues\, such as the Dyson Brownian motion (Keles 2025). We propose a Riemann-Hilbert approach to this problem. I will explain how our approach allows one to probe the “microscopic scale” (a scale which is inaccessible via loop equations)\, where the appearance of Painlevé transcendents is anticipated. This is joint work with Ahmad Barhoumi.
UID:151180-21911039@events.umich.edu
URL:https://events.umich.edu/event/151180
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260906T010254
DTSTART;TZID=America/Detroit:20260909T160000
DTEND;TZID=America/Detroit:20260909T170000
SUMMARY:Workshop / Seminar:Student AIM Seminar: Planning Meeting
DESCRIPTION:Hope you had a wonderful summer break\, and welcome to the new semester! The Student AIM Seminar will be holding a planning meeting on Wednesday\, September 9 from 4-5 pm in East Hall 3088. We'd love to hear about your ideas about any social/professional event ideas\, research topics\, or speakers that you'd like us to facilitate for this semester. We especially encourage first-year PhD students to attend.
UID:151640-21911885@events.umich.edu
URL:https://events.umich.edu/event/151640
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics
LOCATION:East Hall - 3088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260904T113945
DTSTART;TZID=America/Detroit:20260910T100000
DTEND;TZID=America/Detroit:20260910T110000
SUMMARY:Workshop / Seminar:Descriptive set theory
DESCRIPTION:Research seminar on descriptive set theory. The first several talks will be by Scott Schneider on his work on Borel equivalence relations generated by families of commuting functions.
UID:151566-21911774@events.umich.edu
URL:https://events.umich.edu/event/151566
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 5822
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T115014
DTSTART;TZID=America/Detroit:20260910T153000
DTEND;TZID=America/Detroit:20260910T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Preprint Seminar
DESCRIPTION:None
UID:151631-21911873@events.umich.edu
URL:https://events.umich.edu/event/151631
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260815T160439
DTSTART;TZID=America/Detroit:20260910T160000
DTEND;TZID=America/Detroit:20260910T170000
SUMMARY:Workshop / Seminar:DE Seminar: Mathematical Analysis of Many-Body Quantum Simulation with Coulomb Potentials
DESCRIPTION:Efficient simulation of many-body quantum dynamics is central to advances in physics\, chemistry\, and quantum computing. A fundamental question is whether the simulation cost can scale polynomially with system size in the presence of realistic interactions. In this talk\, we focus on many-body quantum systems with Coulomb interactions\, which play a central role in electronic and molecular dynamics. We prove that first-order Trotterization for such unbounded Hamiltonians admits a polynomial dependence on the number of particles in the continuum limit\, with a convergence rate of order $1/4$—in contrast to prior Trotter analyses for bounded operators\, which diverge in this limit. The result holds for all initial wavefunctions in the domain of the Hamiltonian. This $1/4$-order rate is optimal\, as previous work shows that it can be saturated by the ground state of the hydrogen atom. Moreover\, higher-order Trotter formulas do not improve the worst-case scaling. We also discuss additional regularity conditions on the initial state under which the original Trotter convergence rate can be recovered. Finally\, we discuss our recent development on the spatial error and algorithm complexities.
UID:149190-21905948@events.umich.edu
URL:https://events.umich.edu/event/149190
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics,Quantum
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260903T145225
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T160000
SUMMARY:Workshop / Seminar:Type C multiline queues and the open-boundary TASEP
DESCRIPTION:The multispecies TASEP on a circle is a particle model whose partition function is connected to Macdonald polynomials at t=0. Multiline queues were introduced by Ferrari and Martin (2007) to compute the stationary distribution of the TASEP on a circle. Their construction admits a natural interpretation in terms of tensor products of Kirillov–Reshetikhin crystals of affine type A\, and a map from these tensor products to TASEP states is given by crystal-theoretic operations. We show that there is a natural Markov chain on the crystal that projects to the TASEP via this map.\nThe multispecies open boundary TASEP can be viewed as a type C analogue\, with its partition function connected to Koornwinder polynomials at t=0. However\, computing its stationary distribution beyond rank 1 has remained a longstanding open problem. Using Kirillov–Reshetikhin crystals of affine type C\, we construct type C multiline queues and a corresponding Ferrari–Martin pairing algorithm\, and show the crystal likewise admits a Markov chain that projects to the TASEP. Our construction is a combinatorial interpretation of the virtualization map for Kashiwara–Nakashima columns. We thus obtain a crystal-theoretic formula for the stationary distribution of the multispecies open boundary TASEP at the specialization alpha=beta=1. This is joint work with Jeronimo Valencia Porras.
UID:148388-21904175@events.umich.edu
URL:https://events.umich.edu/event/148388
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260810T205616
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T160000
SUMMARY:Lecture / Discussion:Pseudo-magnetism in a strained discrete honeycomb lattice
DESCRIPTION:Abstract: Slowly-varying nonuniform strain in honeycomb media can generate an effective pseudo-magnetic field\, even though the underlying medium is non-magnetic. This phenomenon was first discovered in graphene and later in photonic crystals\, and other physical settings. In this talk\, I will start from a discrete nearest-neighbor tight-binding model for a nonuniformly strained honeycomb medium. I will then show how this model leads to a continuum magnetic Dirac Hamiltonian that describes wave packets concentrated near a Dirac point of the undeformed structure. I will focus on unidirectional deformations with bounded gradients that preserve translation invariance along the armchair direction. In this setting\, we prove the existence of eigenmodes that behave like plane waves along the armchair direction and are strongly localized in the transverse direction\, together with quantitative correction estimates. These results apply to deformations that produce an approximately constant pseudo-magnetic field perpendicular to the plane. They also lead to nearly flat bands and\, as a consequence\, a very high density of states. These analytical results are also supported by numerical simulations of the corresponding deformations. This is joint work with Michael I. Weinstein.\n\nContact:  Ian Tobasco
UID:148873-21905035@events.umich.edu
URL:https://events.umich.edu/event/148873
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T002719
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T160000
SUMMARY:Workshop / Seminar:Student Algebraic Geometry: Reconstruction Theorems
DESCRIPTION:Gabriel's reconstruction theorem states that a noetherian scheme can be fully recovered from its abelian category of quasi-coherent sheaves. This motivates noncommutative algebraic geometry\, which advocates viewing any abelian category as a category of sheaves on a \"noncommutative space\". I will sketch two approaches to the proof and discuss extensions to the derived and stacky settings.
UID:151678-21911940@events.umich.edu
URL:https://events.umich.edu/event/151678
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T184739
DTSTART;TZID=America/Detroit:20260914T150000
DTEND;TZID=America/Detroit:20260914T160000
SUMMARY:Workshop / Seminar:Math Grad Show and Tell Seminar: Theoretical Crochet: A crossroads of graph theory\, geometry\, and cat toys
DESCRIPTION:In this talk I explain how I got into the hobby\, and how I later learned that any crochet pattern can be expressed as a graph. Therefore any appropriate graph can be turned into a crochet pattern. Learn which graphs lead to which shapes when we keep all edges the same length\, thereby uncovering the unprecedented utility of the single-stitch crochet. This could also be seen as a study on all surfaces one can build with equilateral triangles. This idea leads to a potentially novel algorithm which may revolutionize the hobby.
UID:151802-21912194@events.umich.edu
URL:https://events.umich.edu/event/151802
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260905T144022
DTSTART;TZID=America/Detroit:20260915T090000
DTEND;TZID=America/Detroit:20260915T100000
SUMMARY:Livestream / Virtual:TDB
DESCRIPTION:TBD
UID:151634-21911880@events.umich.edu
URL:https://events.umich.edu/event/151634
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Seminar,Virtual
LOCATION:Off Campus Location
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260902T142650
DTSTART;TZID=America/Detroit:20260915T123000
DTEND;TZID=America/Detroit:20260915T133000
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:151408-21911546@events.umich.edu
URL:https://events.umich.edu/event/151408
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2075
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T135635
DTSTART;TZID=America/Detroit:20260915T160000
DTEND;TZID=America/Detroit:20260915T170000
SUMMARY:Lecture / Discussion:Colloquium: Combinatorics of Quiver Mutations
DESCRIPTION:Scott Neville is an RTG postdoctoral researcher at the University of Oregon mathematics department. He completed his PhD at the University of Michigan in 2025 and has recently held positions at ICERM and LACIM. His research focuses on using computation and algorithms to better understand algebraic combinatorics\, with a recent emphasis on cluster algebras.\n\nExplore quiver mutations - transformations of directed graphs with applications across mathematics. Examine mutation cycles\, their challenges for greedy algorithms\, and new invariants that can quickly determine whether two quivers are mutation equivalent.
UID:149232-21906021@events.umich.edu
URL:https://events.umich.edu/event/149232
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:colloquium,Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260902T143016
DTSTART;TZID=America/Detroit:20260916T143000
DTEND;TZID=America/Detroit:20260916T153000
SUMMARY:Workshop / Seminar:Learning seminar in algebraic combinatorics: Introduction to solvable lattice models
DESCRIPTION:The first meeting of the learning seminar in algebraic combinatorics. Rui will give an introduction and overview of the topic for this semester.
UID:151409-21911549@events.umich.edu
URL:https://events.umich.edu/event/151409
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260909T155211
DTSTART;TZID=America/Detroit:20260916T143000
DTEND;TZID=America/Detroit:20260916T153000
SUMMARY:Workshop / Seminar:Student Number Theory: TBD
DESCRIPTION:TBD
UID:151848-21912265@events.umich.edu
URL:https://events.umich.edu/event/151848
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260906T222240
DTSTART;TZID=America/Detroit:20260916T153000
DTEND;TZID=America/Detroit:20260916T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:151651-21911898@events.umich.edu
URL:https://events.umich.edu/event/151651
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260803T142311
DTSTART;TZID=America/Detroit:20260916T160000
DTEND;TZID=America/Detroit:20260916T170000
SUMMARY:Workshop / Seminar:Optimal Contract\, Delegated Investment\, and Information Acquisition
DESCRIPTION:We study a model of delegated investment within a noisy rational expectations equilibrium framework. Portfolio managers can acquire costly private information about asset payoffs but incur portfolio management costs\, and are compensated by investors to make investment decisions on their behalf. We show that the optimal contract features a benchmark component that mitigates the agency frictions arising from portfolio management costs. The precision of managers' private information is determined endogenously in market equilibrium\, with private and public information acting as substitutes. As portfolio management costs increase\, both the performance-based and benchmark components of the optimal contract become more sensitive to investment outcomes\, while fewer private signals are incorporated into prices\, reducing market informational efficiency. We further show that when a social planner places sufficient weight on the welfare of direct investors and liquidity providers\, the socially optimal equilibrium achieves greater price informational efficiency than the decentralized equilibrium. The talk will focus on the interaction between optimal contracting\, information acquisition\, and market efficiency\, together with the economic intuition underlying these results.
UID:149582-21906724@events.umich.edu
URL:https://events.umich.edu/event/149582
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260909T203739
DTSTART;TZID=America/Detroit:20260916T160000
DTEND;TZID=America/Detroit:20260916T170000
SUMMARY:Workshop / Seminar:Probability and Analysis Seminar: Non-abelian Hirota–Miwa Equations for the KPZ Universality Class
DESCRIPTION:Abstract: The KPZ universality class is a broad collection of mathematical and physical models linked through their shared universal scaling behavior. A privileged subset\, known as exactly solvable models\, possess algebraic structure that allows for exact formulas for their probability distributions.\n\nFor an even smaller subset of these models\, their distributions have been shown to satisfy nonlinear equations from classical integrable systems\, including Painlevé\, KP\, and Toda equations. Why should equations from soliton theory appear in random growth\, and why do they keep reappearing across different models?\n\nI will describe a framework that gives a common algebraic explanation and extends this connection to eighteen exactly solvable models. The framework organizes the Fredholm determinant formulas of solvable KPZ models into an overdetermined linear problem whose compatibility conditions reveal a discrete integrable structure gauge equivalent to the non-abelian Hirota–Miwa equation.
UID:151181-21911040@events.umich.edu
URL:https://events.umich.edu/event/151181
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260904T114301
DTSTART;TZID=America/Detroit:20260917T100000
DTEND;TZID=America/Detroit:20260917T110000
SUMMARY:Workshop / Seminar:Descriptive set theory
DESCRIPTION:Research seminar on descriptive set theory. The first several talks will be by Scott Schneider on his work on Borel equivalence relations generated by families of commuting functions.
UID:151567-21911775@events.umich.edu
URL:https://events.umich.edu/event/151567
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 5822
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260902T091907
DTSTART;TZID=America/Detroit:20260917T160000
DTEND;TZID=America/Detroit:20260917T170000
SUMMARY:Lecture / Discussion:Stephen DeBacker\, the Mahendra Parekh Director of the Center for Inquiry Based Learning\, Arthur F. Thurnau Professor of Mathematics\, Inaugural Lecture
DESCRIPTION:Even the Greeks ...\n\nA discussion of Inquiry Based Learning at Michigan\n\nThis event will be delivered both in person and virtually. \n\nThis talk is about Inquiry-Based Learning (IBL)\, a pedagogical method that emphasizes discovery\, analysis\, and investigation as means of deepening students’ understanding of mathematical ideas and applications. Following a brief survey of the history of IBL at the University of Michigan\, we will attempt both to convey the power of IBL and to explain the meaning of the talk’s title through an immersive experience. I will conclude with reflections drawn from my own teaching and learning experiences.\n\nIf you are unable to join us in person\, \nJoin from PC\, Mac\, iPad\, or Android:\nhttps://umich.zoom.us/j/99717161623\n\nPhone one-tap:\n+16469313860\,\,99717161623# US\n+13017158592\,\,99717161623# US (Washington DC)\n\nJoin via audio:\n+1 646 931 3860 US\n+1 301 715 8592 US (Washington DC)\n+1 305 224 1968 US\n+1 309 205 3325 US\n+1 312 626 6799 US (Chicago)\n+1 646 876 9923 US (New York)\n+1 689 278 1000 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+1 778 907 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: 997 1716 1623\nInternational numbers available: https://umich.zoom.us/u/axMP7qvbv
UID:149350-21906263@events.umich.edu
URL:https://events.umich.edu/event/149350
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:LSA Building - Multipurpose Room #1040
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260810T205656
DTSTART;TZID=America/Detroit:20260918T150000
DTEND;TZID=America/Detroit:20260918T160000
SUMMARY:Lecture / Discussion:Foundation models and agentic AI for discovery in fluid mechanics
DESCRIPTION:Abstract:  In this seminar we discuss a unified framework that combines explainable deep learning\, deep reinforcement learning (DRL) and foundation models to advance both understanding and control of turbulence\, with direct implications for accelerated design and discovery. First\, we will show how explainable deep learning techniques can be used to identify the flow features that are truly responsible for key turbulent processes in wall-bounded flows. By systematically interrogating trained neural networks\, we uncover the most influential coherent structures driving momentum transport and drag. Our results reveal that classically studied structures (while important) provide only a partial and sometimes misleading perspective\, motivating a more data-driven and physics-aware view of turbulence organization. Building on these insights\, we will demonstrate how deep reinforcement learning can be used to actively control turbulent flows by targeting the dynamically relevant structures identified through explainability. This approach achieves over 30% drag reduction in canonical wall-bounded turbulence and extends naturally to more complex configurations\, including turbulent wings\, highlighting the scalability of learning-based control strategies. Finally\, we will introduce a foundation-model-based framework for accelerated design\, optimization and scientific discovery. By learning compact\, interpretable latent representations of high-dimensional flow physics\, these models (combined with agentic-AI systems) enable rapid exploration of design spaces\, causal reasoning and closed-loop optimization\, bridging the gap between expensive simulations\, control and engineering decision making. Together\, these results illustrate how explainable and agentic AI are becoming essential for turbulence physics\, flow control and next-generation engineering design.\n\n\nContact:  Silas Alben
UID:148874-21905036@events.umich.edu
URL:https://events.umich.edu/event/148874
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T142951
DTSTART;TZID=America/Detroit:20260918T150000
DTEND;TZID=America/Detroit:20260918T160000
SUMMARY:Workshop / Seminar:Extremal set theory as algebraic geometry
DESCRIPTION:Extremal set theory asks questions such as \"what is the largest family of pairwise intersecting k-element subsets of an n-element set?\"  Many questions of this type can be modeled with exterior algebras\, and admit extensions such as \"what is the largest self-annihilating subspace of k-forms in an n-variable exterior algebra?\"  The shifting technique in extremal set theory corresponds to algebraic geometric limits of certain curves in a Grassmannian.\n\nIn this talk\, I will overview these connections\, and go on to discuss recent joint work with Bulavka and Gandini.  We find a maximum subspace of k-forms in an n-variable exterior algebra that is self-annihilating but not annihilated by any 1-form.  A difficulty is that \"not annihilated by any 1-form\" is not a closed condition in the Grassmannian.  This work extends the Hilton-Milner theorem of extremal set theory to the exterior algebra setting\, and answers questions of Scott and Wilmer and of my own.
UID:149342-21906254@events.umich.edu
URL:https://events.umich.edu/event/149342
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260801T084552
DTSTART;TZID=America/Detroit:20260921T160000
DTEND;TZID=America/Detroit:20260921T170000
SUMMARY:Lecture / Discussion:TBA
DESCRIPTION:TBA
UID:149737-21907014@events.umich.edu
URL:https://events.umich.edu/event/149737
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Dynamics,Number Theory
LOCATION:East Hall - 3096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T111308
DTSTART;TZID=America/Detroit:20260921T160000
DTEND;TZID=America/Detroit:20260921T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:151698-21911991@events.umich.edu
URL:https://events.umich.edu/event/151698
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T113212
DTSTART;TZID=America/Detroit:20260921T160000
DTEND;TZID=America/Detroit:20260921T170000
SUMMARY:Workshop / Seminar:GLNT+Dynamics: TBA
DESCRIPTION:TBD
UID:151704-21912002@events.umich.edu
URL:https://events.umich.edu/event/151704
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260731T102241
DTSTART;TZID=America/Detroit:20260923T153000
DTEND;TZID=America/Detroit:20260923T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar -- TBA
DESCRIPTION:TBA
UID:149714-21906987@events.umich.edu
URL:https://events.umich.edu/event/149714
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260727T104702
DTSTART;TZID=America/Detroit:20260923T160000
DTEND;TZID=America/Detroit:20260923T170000
SUMMARY:Workshop / Seminar:Buying Time: Optimal Service Purchase and Retirement Timing in Defined Benefit Plans
DESCRIPTION:We study retirement timing decisions in a defined benefit (DB) pension plan with a service-purchase\noption. An employee who would otherwise retire at a fixed time T may elect to purchase L additional\nyears of service and retire early. Earlier retirement provides additional leisure but requires an upfront\npayment and typically results in a reduced post-retirement income stream. We model this trade-off in\na continuous-time retirement framework by allowing the employee to choose L to maximize the value\nof wealth and leisure at retirement in both deterministic and life-contingent settings. Our model\ncaptures a common feature of public pension systems: early retirement is often accompanied by both\nan upfront cost and a permanent reduction in benefits. We show that this structure yields tractable\nand intuitive results in several benchmark cases\, including settings without mortality risk and settings\nwith mortality risk under simplifying assumptions. In more general cases\, we characterize optimal\nbehavior through comparative statics and numerical examples. A key insight is that the interaction\nbetween the finite-horizon value of leisure and the lifetime cost embedded in pension pricing can\ngenerate a range of behaviors\, including monotone strategies and interior optima. While many results\nalign with economic intuition\, others require more careful interpretation. We also extend the model to\nallow for dynamic decision-making via a multi-period service-purchase option\, solved by backward\ninduction. The results provide insight into optimal retirement timing and the role of plan design in\nshaping participant behavior. This is joint work with David Kausch and Virginia Young.
UID:149578-21906720@events.umich.edu
URL:https://events.umich.edu/event/149578
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260813T140612
DTSTART;TZID=America/Detroit:20260923T160000
DTEND;TZID=America/Detroit:20260923T172000
SUMMARY:Workshop / Seminar:RTG SEMINAR GEOMETRY\, TOPOLOGY\, DYNAMICS: Global Rigidity of Codimenson 1 Actions
DESCRIPTION:TBA
UID:150235-21908433@events.umich.edu
URL:https://events.umich.edu/event/150235
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260830T165053
DTSTART;TZID=America/Detroit:20260923T160000
DTEND;TZID=America/Detroit:20260923T170000
SUMMARY:Workshop / Seminar:Probability and Analysis Seminar: TBA
DESCRIPTION:TBA
UID:151182-21911041@events.umich.edu
URL:https://events.umich.edu/event/151182
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260705T154311
DTSTART;TZID=America/Detroit:20260924T160000
DTEND;TZID=America/Detroit:20260924T170000
SUMMARY:Workshop / Seminar:GEOMETRY SEMINAR: TBA
DESCRIPTION:TBA
UID:149234-21906025@events.umich.edu
URL:https://events.umich.edu/event/149234
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3860
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T134834
DTSTART;TZID=America/Detroit:20260925T150000
DTEND;TZID=America/Detroit:20260925T160000
SUMMARY:Lecture / Discussion:Discrete structure\, continuous dynamics: Graph-theoretic approaches and singular parametric limits in biochemical reaction networks
DESCRIPTION:Abstract: A biochemical reaction network is based on a discrete object: a directed graph whose edges are labeled with reaction rates. At the same time\, it is governed by continuous dynamics\, typically expressed as a nonlinear system of polynomial ODEs. These two descriptions encode the same system but have fundamentally different mathematical structures. This mathematical tension raises the question: how does the discrete structure of a biochemical network govern its continuous dynamics? In this talk\, I will explore this question through several examples at the intersection of graph theory\, dynamical systems\, and applied algebraic geometry. In particular\, I will focus on singular limits in which reaction-rate parameters tend to infinity. These limits motivate a graph operation that resembles an edge contraction\, and I will examine their effects on graph invariants expressed as rational functions of the model parameters. I will then extend this construction to structural identifiability and discuss how model reduction alters the geometry of parameter space. Finally\, I will turn to a stochastic interpretation of this graph-theoretic framework and describe how asymmetry in the spectral decomposition of a finite-state continuous-time Markov process gives rise to a signature of departure from thermodynamic equilibrium\, with unexpectedly nonmonotone behavior even on the simplest networks. I will conclude with a discussion of broader future directions focused on understanding how network operations may affect qualitative dynamical properties of the system. Together\, these examples illustrate how biologically inspired networks generate subtle structural questions and new mathematics at the interface of discrete and continuous systems.\n\nContact:  Zhiyan Ding
UID:148875-21905037@events.umich.edu
URL:https://events.umich.edu/event/148875
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260803T105819
DTSTART;TZID=America/Detroit:20260925T150000
DTEND;TZID=America/Detroit:20260925T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBD
UID:149752-21907056@events.umich.edu
URL:https://events.umich.edu/event/149752
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260821T125658
DTSTART;TZID=America/Detroit:20260928T160000
DTEND;TZID=America/Detroit:20260928T170000
SUMMARY:Lecture / Discussion:TBA
DESCRIPTION:TBA
UID:150714-21909991@events.umich.edu
URL:https://events.umich.edu/event/150714
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Dynamics,Mathematics
LOCATION:East Hall - 3096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260709T142431
DTSTART;TZID=America/Detroit:20260929T160000
DTEND;TZID=America/Detroit:20260929T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:149288-21906196@events.umich.edu
URL:https://events.umich.edu/event/149288
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260729T135308
DTSTART;TZID=America/Detroit:20260930T153000
DTEND;TZID=America/Detroit:20260930T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:149657-21906898@events.umich.edu
URL:https://events.umich.edu/event/149657
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260729T153011
DTSTART;TZID=America/Detroit:20260930T160000
DTEND;TZID=America/Detroit:20260930T170000
SUMMARY:Workshop / Seminar:Quantitative propagation of chaos and universality for asymmetric Langevin spin glass dynamics
DESCRIPTION:We obtain quantitative estimates on quenched propagation of chaos for Langevin spin glass dynamics with i.i.d. disorder. Prior work in the case of Gaussian disorder established the qualitative convergence of the law of a single spin to a deterministic McKean--Vlasov limit. We prove convergence rates in expected Wasserstein distance and quantitative concentration rates for Lipschitz observables under the assumption that the disorder satisfies the T_2 inequality. The proof uses a coupling argument\, together with techniques from concentration of measure\, filtering theory\, and Malliavin calculus.
UID:149663-21906910@events.umich.edu
URL:https://events.umich.edu/event/149663
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260815T081208
DTSTART;TZID=America/Detroit:20260930T160000
DTEND;TZID=America/Detroit:20260930T170000
SUMMARY:Workshop / Seminar:Geometry-Topology RTG Seminar: TBA
DESCRIPTION:Abstract: TBA
UID:150309-21909000@events.umich.edu
URL:https://events.umich.edu/event/150309
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260812T223315
DTSTART;TZID=America/Detroit:20261002T150000
DTEND;TZID=America/Detroit:20261002T160000
SUMMARY:Lecture / Discussion:Title TBA
DESCRIPTION:Abstract: TBA\n\nContact: Ian Tobasco
UID:148876-21905038@events.umich.edu
URL:https://events.umich.edu/event/148876
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260731T230300
DTSTART;TZID=America/Detroit:20261002T150000
DTEND;TZID=America/Detroit:20261002T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBD
UID:149734-21907011@events.umich.edu
URL:https://events.umich.edu/event/149734
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260803T225927
DTSTART;TZID=America/Detroit:20261002T160000
DTEND;TZID=America/Detroit:20261002T170000
SUMMARY:Workshop / Seminar:Topology seminar: TBA
DESCRIPTION:Abstract: TBA
UID:149808-21907215@events.umich.edu
URL:https://events.umich.edu/event/149808
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260407T124520
DTSTART;TZID=America/Detroit:20261007T160000
DTEND;TZID=America/Detroit:20261007T170000
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:20260908T125528
DTSTART;TZID=America/Detroit:20261009T150000
DTEND;TZID=America/Detroit:20261009T160000
SUMMARY:Lecture / Discussion:Spectral theory of soliton gases for integrable equations and related problems
DESCRIPTION:Abstract:  Soliton gases for integrable systems is a rapidly developing new area in the theory of nonlinear waves. The spectral theory of soliton gases is concerned about macroscopic characteristics of large soliton ensembles. We go briefly over the history of the subject\, such as V. Zakharov’s (1971) expression of the average velocity of a trial soliton in a (diluted) gas and the idea of the thermodynamic limit of wavenumbers and frequencies of finite gap solutions of G. El (2003). We then discuss some recent results and open problems\, as well as some methods of potential theory and algebraic geometry that appear to be relevant for soliton gases.\n\nContact:  Peter Miller
UID:148877-21905039@events.umich.edu
URL:https://events.umich.edu/event/148877
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260803T110907
DTSTART;TZID=America/Detroit:20261009T150000
DTEND;TZID=America/Detroit:20261009T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBD
UID:149753-21907057@events.umich.edu
URL:https://events.umich.edu/event/149753
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260818T201009
DTSTART;TZID=America/Detroit:20261009T160000
DTEND;TZID=America/Detroit:20261009T170000
SUMMARY:Workshop / Seminar:Topology seminar: TBA
DESCRIPTION:Abstract: TBA
UID:150488-21909511@events.umich.edu
URL:https://events.umich.edu/event/150488
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260902T142650
DTSTART;TZID=America/Detroit:20261013T123000
DTEND;TZID=America/Detroit:20261013T133000
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:151408-21911547@events.umich.edu
URL:https://events.umich.edu/event/151408
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2075
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260705T092329
DTSTART;TZID=America/Detroit:20261013T160000
DTEND;TZID=America/Detroit:20261013T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:148947-21905245@events.umich.edu
URL:https://events.umich.edu/event/148947
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260814T013551
DTSTART;TZID=America/Detroit:20261014T153000
DTEND;TZID=America/Detroit:20261014T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:150254-21908471@events.umich.edu
URL:https://events.umich.edu/event/150254
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260810T083123
DTSTART;TZID=America/Detroit:20261014T160000
DTEND;TZID=America/Detroit:20261014T170000
SUMMARY:Workshop / Seminar:Kullback–Leibler Mirror-Prox for Measure-Valued Variational Inequalities and Mean-Field Equilibria
DESCRIPTION:We study the computation of static mean-field equilibria on a compact state space by formu-\nlating the equilibrium condition as a variational inequality over probability measures. We propose\nan entropic variant of Korpelevich’s extragradient algorithm—the Kullback–Leibler Mirror-Prox\nmethod—in which Euclidean projections are replaced by relative-entropy proximal steps. Each\nhalf-step is therefore an explicit exponential reweighting of the current measure\, implemented on a\nfinite state-space discretization. Under Lasry–Lions monotonicity and continuity assumptions\, we\nprove convergence of mesh-refined ergodic averages and obtain finite-iteration Minty-residual and\napproximate-equilibrium bounds that jointly quantify iteration and discretization errors. Under\nstrong monotonicity\, we derive metric convergence rates for the last\, best\, and averaged iterates.\nWe also develop a KL-type Tikhonov regularization that selects the equilibrium minimizing relative\nentropy with respect to a reference measure. The framework applies to potential and nonpotential\ncost operators and does not require differentiability or convexity of the cost in the individual state.\n\nJoint work with Erhan Bayraktar\, Ibrahim Ekren and Lu Vy.
UID:150040-21907900@events.umich.edu
URL:https://events.umich.edu/event/150040
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260820T143757
DTSTART;TZID=America/Detroit:20261016T150000
DTEND;TZID=America/Detroit:20261016T160000
SUMMARY:Lecture / Discussion:From Woven Baskets to Filamentous Mycelium: Harnessing Entanglement for Structural Resilience
DESCRIPTION:Abstract:  TBA\n\nContact:  Ian Tobasco
UID:148878-21905040@events.umich.edu
URL:https://events.umich.edu/event/148878
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260824T192740
DTSTART;TZID=America/Detroit:20261016T150000
DTEND;TZID=America/Detroit:20261016T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBD
UID:150856-21910313@events.umich.edu
URL:https://events.umich.edu/event/150856
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260310T125925
DTSTART;TZID=America/Detroit:20261021T153000
DTEND;TZID=America/Detroit:20261021T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:146416-21899058@events.umich.edu
URL:https://events.umich.edu/event/146416
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260802T145904
DTSTART;TZID=America/Detroit:20261023T150000
DTEND;TZID=America/Detroit:20261023T160000
SUMMARY:Lecture / Discussion:Reserved
DESCRIPTION:Abstract:  TBA\n\nContact: Naoki Masuda
UID:148879-21905041@events.umich.edu
URL:https://events.umich.edu/event/148879
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260806T203850
DTSTART;TZID=America/Detroit:20261023T150000
DTEND;TZID=America/Detroit:20261023T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBD
UID:149981-21907760@events.umich.edu
URL:https://events.umich.edu/event/149981
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260825T203621
DTSTART;TZID=America/Detroit:20261027T160000
DTEND;TZID=America/Detroit:20261027T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:148250-21903442@events.umich.edu
URL:https://events.umich.edu/event/148250
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260903T140455
DTSTART;TZID=America/Detroit:20261028T160000
DTEND;TZID=America/Detroit:20261028T170000
SUMMARY:Workshop / Seminar:Policy Gradient Flow for Stochastic Control
DESCRIPTION:Reinforcement learning has achieved remarkable success in landmark applications such as AlphaGo and AlphaFold\, and is increasingly expected to play a central role in emerging domains such as autonomous driving. A substantial body of work has established theoretical foundations for classical reinforcement learning algorithms\, including temporal-difference learning\, policy iteration\, and Q-learning. By contrast\, policy gradient descent\, despite its widespread use\, remains less well understood from a theoretical perspective\, largely because of its non-convex structure and the complexity of the underlying functional space. Existing convergence analyses typically require uniform regularity assumptions on the policy\, viewed as a feedback control function\, along the gradient flow\; moreover\, the resulting convergence rates depend on these regularity bounds. In this work\, we significantly strengthen the existing convergence theory. Our key insight is to relate policy gradient descent to a mirror flow on the space of probability measures over controlled trajectories\, where the Bregman divergence is induced by the convex control cost. We rigorously prove a JKO-type convergence result showing that the discrete-time mirror flow converges to its continuous-time counterpart\, and we identify the limiting dynamics as a preconditioned policy gradient descent flow on the space of control processes. Leveraging this mirror-flow perspective\, we establish an exponential convergence rate that is independent of policy regularity. The convergence holds both in Bregman divergence and in the value of the associated control problem.
UID:148617-21904532@events.umich.edu
URL:https://events.umich.edu/event/148617
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260811T150437
DTSTART;TZID=America/Detroit:20261028T160000
DTEND;TZID=America/Detroit:20261028T172000
SUMMARY:Workshop / Seminar:RTG SEMINAR: Geometry\, Topology\, Dynamics     TBA
DESCRIPTION:TBA
UID:150138-21908180@events.umich.edu
URL:https://events.umich.edu/event/150138
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260726T221623
DTSTART;TZID=America/Detroit:20261030T040000
DTEND;TZID=America/Detroit:20261030T050000
SUMMARY:Workshop / Seminar:Topology seminar: TBA
DESCRIPTION:Abstract: TBA
UID:149564-21906708@events.umich.edu
URL:https://events.umich.edu/event/149564
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260812T113124
DTSTART;TZID=America/Detroit:20261030T150000
DTEND;TZID=America/Detroit:20261030T160000
SUMMARY:Lecture / Discussion:Title TBA
DESCRIPTION:Abstract:  TBA\n\nContact:  Silas Alben
UID:148880-21905042@events.umich.edu
URL:https://events.umich.edu/event/148880
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260807T112526
DTSTART;TZID=America/Detroit:20261030T150000
DTEND;TZID=America/Detroit:20261030T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBA
UID:149993-21907789@events.umich.edu
URL:https://events.umich.edu/event/149993
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260805T123105
DTSTART;TZID=America/Detroit:20261104T153000
DTEND;TZID=America/Detroit:20261104T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:149916-21907370@events.umich.edu
URL:https://events.umich.edu/event/149916
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260705T153024
DTSTART;TZID=America/Detroit:20261104T160000
DTEND;TZID=America/Detroit:20261104T172000
SUMMARY:Workshop / Seminar:RTG SEMINAR Topology\, Geometry\, Dynamics:  TBA
DESCRIPTION:TBA
UID:149233-21906024@events.umich.edu
URL:https://events.umich.edu/event/149233
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3860
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260807T155844
DTSTART;TZID=America/Detroit:20261104T160000
DTEND;TZID=America/Detroit:20261104T170000
SUMMARY:Workshop / Seminar:Exploratory Optimal Reinsurance under the Mean-Variance Criterion
DESCRIPTION:This paper proposes a Reinforcement Learning (RL) approach to the optimal reinsurance problem\nwhen the insurer faces uncertainty about the insurance claim dynamics. To this end\, we first formulate\nan exploratory version of the problem as a relaxed stochastic control problem. Within a broad class of\nparametric retention functions and general risk loading functions\, we derive the closed-form equilibrium\npolicy under the continuous-time mean-variance criterion. This is achieved through a formal verification\ntheorem and solving classical solutions of a system of exploratory extended Hamilton-Jacobi-Bellman\n(EEHJB) equations. We then establish a policy iteration theorem\, showing that starting from any timeand state-homogeneous policy\, policy iteration converges to the derived equilibrium policy. Next\, we\ndevelop a martingale orthogonality theorem\, which serves as the foundation of our RL algorithm. The\nalgorithm is evaluated through simulation studies and real data from the U.S. National Flood Insurance\nProgram. Results demonstrate that the RL approach effectively learns unknown claim distributions\,\ntracks unobserved changes in claim dynamics and produces higher insurer surplus trajectories than the\nmaximum likelihood estimation (MLE) approach while simultaneously exhibiting greater robustness to\nthe choice of training window.
UID:150012-21907810@events.umich.edu
URL:https://events.umich.edu/event/150012
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260826T193154
DTSTART;TZID=America/Detroit:20261106T150000
DTEND;TZID=America/Detroit:20261106T160000
SUMMARY:Lecture / Discussion:Title TBA
DESCRIPTION:Abstract:  TBA\n\nContact:  Zhiyan Ding
UID:148881-21905043@events.umich.edu
URL:https://events.umich.edu/event/148881
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260812T081935
DTSTART;TZID=America/Detroit:20261106T150000
DTEND;TZID=America/Detroit:20261106T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBD
UID:150159-21908304@events.umich.edu
URL:https://events.umich.edu/event/150159
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
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:20260729T061726
DTSTART;TZID=America/Detroit:20261111T153000
DTEND;TZID=America/Detroit:20261111T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar
DESCRIPTION:TBA
UID:149641-21906838@events.umich.edu
URL:https://events.umich.edu/event/149641
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
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
BEGIN:VEVENT
DTSTAMP:20260813T203347
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T160000
SUMMARY:Lecture / Discussion:Title TBA
DESCRIPTION:Abstract: TBA\n\nContact: Ian Tobasco
UID:148882-21905044@events.umich.edu
URL:https://events.umich.edu/event/148882
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260807T112535
DTSTART;TZID=America/Detroit:20261113T150000
DTEND;TZID=America/Detroit:20261113T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBA
UID:149671-21906924@events.umich.edu
URL:https://events.umich.edu/event/149671
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260728T195313
DTSTART;TZID=America/Detroit:20261113T160000
DTEND;TZID=America/Detroit:20261113T170000
SUMMARY:Workshop / Seminar:Topology seminar: TBA
DESCRIPTION:Abstract: TBA
UID:149640-21906837@events.umich.edu
URL:https://events.umich.edu/event/149640
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260902T142650
DTSTART;TZID=America/Detroit:20261117T123000
DTEND;TZID=America/Detroit:20261117T133000
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:151408-21911548@events.umich.edu
URL:https://events.umich.edu/event/151408
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 2075
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260819T202729
DTSTART;TZID=America/Detroit:20261118T160000
DTEND;TZID=America/Detroit:20261118T170000
SUMMARY:Workshop / Seminar:A New Approach for the Continuous Time Kyle-Back Strategic Insider Equilibrium Problem
DESCRIPTION:In this talk\, we consider a continuous-time Kyle-Back model which is a game between an insider and a market maker. The existing literature typically focuses on constructing equilibria with a PDE approach\, which requires certain Markovian structures. We characterize all equilibria through a coupled system of forward-backward SDEs. In particular\, when the time duration is small\, we show that the FBSDE is well-posed\, and therefore the game has a unique equilibrium. Moreover\, this unique equilibrium may be non-Markovian and thus not attainable via the PDE approach. We next study the set value of the game\, which roughly speaking is the set of insider's values over all equilibria and thus is by nature unique. Finally\, we characterize the set value through a level set of a certain standard HJB equation.\nIn the second part of the talk\, we apply the new approach to the Kyle-Back model with dynamic legal risk and large numbers of noise traders. In this setting\, the insider chooses a strategy that conceals his identity within a large volume of surrounding trades and concentrates on medium-sized trades.  We establish an intensity-based mathematical framework for explaining the interconnections between insider trading and stealth trading. When the number of noise traders becomes large\, the price impact of the insider asymptotically vanishes\, and consequently the stochastic game becomes deterministic optimizations\, which also carry implications for regulatory investigations and sanctions.\n\nThe results above include the joint work with Weixuan Xia and with Jianfeng Zhang.
UID:149579-21906721@events.umich.edu
URL:https://events.umich.edu/event/149579
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260726T221338
DTSTART;TZID=America/Detroit:20261120T040000
DTEND;TZID=America/Detroit:20261120T050000
SUMMARY:Workshop / Seminar:Topology seminar: TBA
DESCRIPTION:Abstract: TBA
UID:149563-21906707@events.umich.edu
URL:https://events.umich.edu/event/149563
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260902T092243
DTSTART;TZID=America/Detroit:20261120T150000
DTEND;TZID=America/Detroit:20261120T160000
SUMMARY:Lecture / Discussion:Title TBA
DESCRIPTION:Abstract:  TBA\n\nContact:  Zhiyan Ding
UID:148883-21905045@events.umich.edu
URL:https://events.umich.edu/event/148883
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260812T122132
DTSTART;TZID=America/Detroit:20261120T150000
DTEND;TZID=America/Detroit:20261120T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBD
UID:150177-21908328@events.umich.edu
URL:https://events.umich.edu/event/150177
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260730T124142
DTSTART;TZID=America/Detroit:20261202T153000
DTEND;TZID=America/Detroit:20261202T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:149688-21906955@events.umich.edu
URL:https://events.umich.edu/event/149688
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260727T104513
DTSTART;TZID=America/Detroit:20261202T160000
DTEND;TZID=America/Detroit:20261202T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:149576-21906718@events.umich.edu
URL:https://events.umich.edu/event/149576
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T213638
DTSTART;TZID=America/Detroit:20261204T150000
DTEND;TZID=America/Detroit:20261204T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148884-21905046@events.umich.edu
URL:https://events.umich.edu/event/148884
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260814T161254
DTSTART;TZID=America/Detroit:20261204T150000
DTEND;TZID=America/Detroit:20261204T160000
SUMMARY:Workshop / Seminar:Combinatorics Seminar
DESCRIPTION:TBD
UID:150291-21908975@events.umich.edu
URL:https://events.umich.edu/event/150291
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260807T130040
DTSTART;TZID=America/Detroit:20261209T153000
DTEND;TZID=America/Detroit:20261209T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar -- TBA
DESCRIPTION:TBA
UID:149995-21907793@events.umich.edu
URL:https://events.umich.edu/event/149995
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260727T104405
DTSTART;TZID=America/Detroit:20261209T160000
DTEND;TZID=America/Detroit:20261209T170000
SUMMARY:Workshop / Seminar:THE HEREDITARY LAWS OF LARGE NUMBERS
DESCRIPTION:The celebrated theorem of Komlos (1967) establishes L^1-boundedness as a sufficient condition for a sequence of measurable functions on a probability space to contain a subsequence along which\, and along whose every further subsequence (“hereditarily”)\, the Cesaro averages converge to a “randomized mean” in the spirit of the Strong law of Large Numbers. We provide conditions not only sufficient\, but also necessary\, for this result\, as well as for the hereditary analogues of the Weak Law of Large Numbers\, of the Hsu-Robbins-Erdos Law of Large Numbers\, and of the Law of the Iterated Logarithm. \n\nJoint work with I. Berkes (Budapest) and W. Schachermayer (Vienna).
UID:149577-21906719@events.umich.edu
URL:https://events.umich.edu/event/149577
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Statistics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260610T213800
DTSTART;TZID=America/Detroit:20261211T150000
DTEND;TZID=America/Detroit:20261211T160000
SUMMARY:Lecture / Discussion:Open Slot
DESCRIPTION:Abstract:  TBA\n\nContact:  TBA
UID:148885-21905047@events.umich.edu
URL:https://events.umich.edu/event/148885
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260827T085943
DTSTART;TZID=America/Detroit:20261211T160000
DTEND;TZID=America/Detroit:20261211T170000
SUMMARY:Workshop / Seminar:Topology seminar: TBA
DESCRIPTION:Abstract: TBA
UID:151001-21910703@events.umich.edu
URL:https://events.umich.edu/event/151001
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260627T181224
DTSTART;TZID=America/Detroit:20270113T153000
DTEND;TZID=America/Detroit:20270113T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: TBA
DESCRIPTION:TBA
UID:149136-21905811@events.umich.edu
URL:https://events.umich.edu/event/149136
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260716T122023
DTSTART;TZID=America/Detroit:20270120T153000
DTEND;TZID=America/Detroit:20270120T165000
SUMMARY:Workshop / Seminar:Algebraic Geometery Seminar: TBA
DESCRIPTION:TBA
UID:149437-21906419@events.umich.edu
URL:https://events.umich.edu/event/149437
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260908T111907
DTSTART;TZID=America/Detroit:20270208T160000
DTEND;TZID=America/Detroit:20270208T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:151699-21911992@events.umich.edu
URL:https://events.umich.edu/event/151699
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260806T131927
DTSTART;TZID=America/Detroit:20270209T160000
DTEND;TZID=America/Detroit:20270209T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:149969-21907456@events.umich.edu
URL:https://events.umich.edu/event/149969
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:colloquium,Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260805T221806
DTSTART;TZID=America/Detroit:20270210T160000
DTEND;TZID=America/Detroit:20270210T172000
SUMMARY:Workshop / Seminar:RTG GEOMETRY\, TOPOLOGY\, DYNAMICS   TBA
DESCRIPTION:TBA
UID:149946-21907414@events.umich.edu
URL:https://events.umich.edu/event/149946
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3866
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260807T120756
DTSTART;TZID=America/Detroit:20270217T160000
DTEND;TZID=America/Detroit:20270217T170000
SUMMARY:Workshop / Seminar:The optimal rate of convergence in mean field control
DESCRIPTION:I will discuss the sharp rate of convergence of the value functions of N-particle stochastic control problems to their mean field limit\, for merely Lipschitz mean field costs. For d ≥ 2\, the optimal rate is that of the empirical measures of i.i.d. samples in the 1-Wasserstein distance\, as conjectured by Daudin\, Delarue\, and Jackson\, and it persists with additive common noise. In dimension one\, this benchmark can surprisingly be beaten: cooperating particles outperform independent samples\, and the optimal exponent is 4/7\, strictly between the accuracy of independent sampling (N^{-1/2}) and that of quantization (N^{-1}). The proofs rely on a new control-theoretic technique of recoupled shadow flows and\, in dimension one\, on a Gibbs law implementing the cooperation and a Schrödinger ground-state estimate.
UID:149994-21907791@events.umich.edu
URL:https://events.umich.edu/event/149994
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260904T142132
DTSTART;TZID=America/Detroit:20270219T150000
DTEND;TZID=America/Detroit:20270219T160000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:151603-21911814@events.umich.edu
URL:https://events.umich.edu/event/151603
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260821T200659
DTSTART;TZID=America/Detroit:20270224T160000
DTEND;TZID=America/Detroit:20270224T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:150752-21910069@events.umich.edu
URL:https://events.umich.edu/event/150752
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260909T131748
DTSTART;TZID=America/Detroit:20270226T150000
DTEND;TZID=America/Detroit:20270226T160000
SUMMARY:Lecture / Discussion:Title TBA
DESCRIPTION:Abstract: TBA\n\nContact: Ian Tobasco
UID:151839-21912247@events.umich.edu
URL:https://events.umich.edu/event/151839
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260904T104356
DTSTART;TZID=America/Detroit:20270317T160000
DTEND;TZID=America/Detroit:20270317T170000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:151564-21911768@events.umich.edu
URL:https://events.umich.edu/event/151564
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260729T143054
DTSTART;TZID=America/Detroit:20270331T153000
DTEND;TZID=America/Detroit:20270331T165000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar -- TBA
DESCRIPTION:TBA
UID:149661-21906908@events.umich.edu
URL:https://events.umich.edu/event/149661
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260904T104603
DTSTART;TZID=America/Detroit:20270414T100000
DTEND;TZID=America/Detroit:20270414T110000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:151565-21911769@events.umich.edu
URL:https://events.umich.edu/event/151565
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20251205T091103
DTSTART;TZID=America/Detroit:20270420T160000
DTEND;TZID=America/Detroit:20270420T170000
SUMMARY:Lecture / Discussion:Colloquium: TBA
DESCRIPTION:TBA
UID:142065-21889962@events.umich.edu
URL:https://events.umich.edu/event/142065
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1360
CONTACT:
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260904T142542
DTSTART;TZID=America/Detroit:20270423T150000
DTEND;TZID=America/Detroit:20270423T160000
SUMMARY:Workshop / Seminar:TBA
DESCRIPTION:TBA
UID:151605-21911817@events.umich.edu
URL:https://events.umich.edu/event/151605
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall
CONTACT:
END:VEVENT
END:VCALENDAR