Event Types
Location
Friezes and geometry
Katie Waddle
Abstract: A fundamental problem in distance geometry aims to recover a finite tuple of points, viewed up to oriented isometry, from a small...
The six vertex model and symmetric polynomials
Paul Mammen
Lattice models from statistical mechanics have become increasingly ubiquitous in algebraic combinatorics. In this talk, we will discuss the...
GLNT: Igusa stacks and the cohomology of Shimura varieties
Dongryul Kim (Stanford)
Abstract: Igusa stacks are $p$-adic geometric objects, recently introduced by Mingjia Zhang, that roughly parametrize ways to $p$-adically...
Extreme Superposition: Rogue Waves of Infinite Order, Universality, and Anomalous Temporal Decay
Deniz Bilman (University of Cincinnati)
Focusing nonlinear Schrödinger equation serves as a universal model for the amplitude of a wave packet in a general one-dimensional...
Invariants of Plabic Links
Amanda Schwartz
Abstract: Plabic graphs were introduced by Postnikov in order to study a stratification of the totally nonnegative Grassmannian. To each...
IBL Lunch
Come talk about teaching with IBL, interactive, and other active teaching methods over lunch. Bring teaching anecdotes, thoughts, and your...
Colloquium: Accelerating Earth system simulation
Peter Bosler, Sandia National Laboratories
Providing high-quality “actionable information” for strategic risk analysis is amongst the primary goals of the U.S. Dept. of Energy...
An introduction to braid groups
Gahl Shemy
We'll define (pure) braid groups in 3 different ways: as the fundamental group of configuration spaces, as mapping class groups of the...
Algebraic Geometry Seminar -- Prym-Brill-Noether Theory for Covers of Elliptic Curves
David Jensen, University of Kentucky
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...
Geometry-Topology RTG Seminar: The Torelli map and Steinberg modules
Jeremy Miller (Purdue)
Abstract: One of the meta questions on mapping class groups concerns understanding the similarities and differences between mapping class...
Bid-Ask Martingale Optimal Transport
Valentin Tissot-Daguette, Bloomberg
Martingale Optimal Transport (MOT) provides a framework for robust pricing and hedging of illiquid derivatives. Classically, MOT enforces...
Algebraic Geometry Learning Seminar: Admissible resolutions
Hyunsuk Kim
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...
Graduate Admissions Visit Days
The Mathematics Department will be hosting prospective Fall 2026 PhD students. There will be a series of lectures and activities on Friday,...
On Fox’s trapezoidal conjecture (Combinatorics Seminar)
Karola Mészáros (Cornell)
Fox’s trapezoidal conjecture from 1962 states that the absolute values of the coefficients of the Alexander polynomial of alternating...
AIM Seminar: Particle Mechanics Applications to Hazards in Civil Engineering
Estéfan Garcia (University of Michigan)
Abstract: Many of the natural hazards that threaten infrastructure and communities are driven by particulate interactions and particle...
Graduate Admissions Visit Days
The Mathematics Department will be hosting prospective Fall 2026 PhD students. There will be a series of lectures and activities on Friday,...
Colloquium: Homological stability of moduli spaces
Dan Petersen, Stockholm University
Homological stability has emerged over the past decades as an organizing principle in topology and beyond. Broadly speaking, many sequences...
Michigan Lectures in Algebraic Geometry and Topology: Stable homology of moduli spaces and moments in families of L-functions over function fields
Dan Petersen (Stockholm U.)
In recent years, several problems in arithmetic statistics that seem completely intractable over number fields, have been resolved in the...
Mean–Variance Portfolio Selection by Continuous-Time Reinforcement Learning: Algorithms, Regret Analysis, and Empirical Study
Xunyu Zhou, Columbia University
We study continuous-time mean–variance portfolio selection in markets where stock prices are diffusion processes driven by observable...
Mean Field Control and Applications in Modern Machine Learning
Qinxin Yan, Princeton
In this talk, I will introduce mean field control and discuss its applications in modern machine learning. I will first describe how...
Student Real Analysis Reading Group
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...
Michigan Lectures in Algebraic Geometry and Topology: Stable homology of moduli spaces and moments in families of L-functions over function fields
Dan Petersen (Stockholm U.)
In recent years, several problems in arithmetic statistics that seem completely intractable over number fields, have been resolved in the...
DE Seminar: Smooth and swirling steady vortex rings near the Hill - Norbury Family
Noah Stevenson, Princeton University
Hill's spherical vortex is a classical explicit solution to the three dimensional Euler equations. It is an axisymmetric and swirl-free...
Twists, Higher Dimer Covers, and Web Duality for Grassmannian Cluster Algebras (Combinatorics)
Gregg Musiker (University of Minnesota)
We study a twisted version of Fraser, Lam, and Le's higher boundary measurement map, using face weights instead of edge weights,...
Michigan Lectures in Algebraic Geometry and Topology: Stable homology of moduli spaces and moments in families of L-functions over function fields
Dan Petersen (Stockholm U.)
In recent years, several problems in arithmetic statistics that seem completely intractable over number fields, have been resolved in the...
GLNT: How you think on a function defined on 0,1,…,N-1?
Shamgar Gurevich (University of Wisconsin--Madison)
Abstract: Between thousand to million times per day, your cellphone calculates the Fourier Transform (FT) of certain complex valued...
Graphical Description of Biochemical Systems via Reaction Networks
Jinsu Kim
A reaction network is a graphical configuration that can describe many biochemical systems with interactions between species (molecules). If...
Algebraic Geometry Learning Seminar: From algebraicity to quadratic splittings of matroids
Mircea Mustata
Explain the proof of the key geometric result (Theorem 1.8 of the paper) behind the main theorem.
RTG NT:
3.1-3.2 of Darmon-Vonk
Robust and Risk-Sensitive Acceleration in Gradient Methods
Mert Gurbuzbalaban, Rutgers
First-order methods such as gradient descent (GD) are foundational in optimization. In unconstrained problems with exact gradients,...
Student Real Analysis Reading Group
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...
Algebraic Geometry Learning Seminar: Albanese graphs
Sam Payne
Discuss the material in Section 5 of the paper. In particular, define Albanese graphs, prove their universal property, and give some...
