### AIM Seminar: Transforming Butterflies into Graphs: Statistics of Chaotic and Turbulent Systems

#### Andre Souza, MIT, Department of Earth, Atmospheric and Planetary Sciences

We formulate a data-driven method for constructing finite volume discretizations of a dynamical system's underlying Continuity /...

### Equivariant cohomology

#### Calvin Yost-Wolff

Equivariant cohomology attaches to a G-equivariant sheaf \mathcal{F} on a variety X with a G action a set of invariants...

### Combinatorics Seminar - From Scattering Amplitudes to Catalan combinatorics

#### Nick Early

In this talk, I will give a gentle overview of recent developments at the intersection of combinatorics, real, complex and tropical geometry...

### GEOMETRY: Hidden Sp(1)-symmetry and brane quantization on hyperKähler manifolds

#### Yu Tung Yau

In a joint work with Conan Leung, we found a natural but hidden Sp(1)-action on the space of L-valued forms on a hyperKähler manifold X...

### ISRMT Seminar: Large deviations for the deformed polynuclear growth

#### Yuchen Liao (University of Wisconsin-Madison)

The polynuclear growth model (PNG) is a prototypical example of random interface growth among the Kardar-Parisi-Zhang universality class. In...

### Commutative Algebra Seminar: Equivariant commutative algebra in positive characteristic

#### Karthik Ganapathy (UMich)

In the presence of a large group action, even non-noetherian rings sometimes behave like noetherian rings. For example, Cohen proved that...

### RTG Number Theory: Internal structure of L-packets for p-adic groups

#### Razan Taha

Abstract: The local Langlands correspondence predicts that there is a finite-to-one map between the set of irreducible, admissible...

### Colloquium: Effects of Network Structure on Spreading of Innovations

#### Gadi Fibich, Tel Aviv University

Spreading (diffusion) of new products is a classical problem. Traditionally, it has been analyzed using the compartmental Bass model, which...

### Math Undergraduate Seminar: What makes a reciprocity law?

#### Adam Earnst

First proved by Gauss, the law of quadratic reciprocity is one of the most beautiful theorems in number theory, with over a hundred distinct...

### Algebraic Geometry Seminar: Minimal Model Program for Generalized Pairs and Foliations

#### Lingyao Xie (U. Utah)

The Minimal Model Program aims to classify all algebraic varieties X (up to birational equivalence) via three building blocks: Fano...

### Ten Lectures on Schubert Polynomials: Lecture I

#### William Fulton (UM)

This first lecture will concentrate on double Schubert polynomials, as preparation for the back-stable generalizations which will be the...

### NTRG: Automorphic Representations

We will be discussing Getz-Hahn's "Introduction to Automorphic Representations."

### Combinatorics Seminar: Quantum Bruhat graphs and tilted Richardson varieties

#### Shiliang Gao

A two-point curve neighborhood is the union of degree d rational curves that pass through two given Schubert varieties in the flag variety....

### Algebraic Geometry Learning Seminar: Definable analytic spaces and GAGA I

#### Mircea Mustata (Michigan)

TBA

### Comparison of viscosity solutions for a class of second order PDEs on the Wasserstein space

#### Ibrahim Ekren, UM

We prove a comparison result for viscosity solutions of second order parabolic partial differential equations in the Wasserstein space. The...

### Math Undergraduate Seminar: Knot Theory (Knot Rigorously)

#### Daniel Cross

To do knot theory formally, you have to introduce a lot of tools from algebraic topology (it's not easy!). That being said, we can say...

### Algebraic Geometry Seminar: Vanishing theorems and the minimal model program with scaling for projective morphisms of excellent schemes, algebraic spaces, and analytic spaces

#### Takumi Murayama (Purdue)

In 1953, Kodaira proved what is now called the Kodaira vanishing theorem, which states that if L is an ample divisor on a complex projective...

### NTRG: Automorphic Representations

We will be discussing Getz-Hahn's "Introduction to Automorphic Representations."

### AIM Seminar: Methods for Numerical Simulations of Soft Actively Contractile Materials in Engineering and Nature

#### Nakhiah Goulbourne, University of Michigan, Department of Aerospace Engineering

Soft materials that can demonstrate on demand configurability and compliance are highly sought in fields such as soft robotics. Whilst there...

### Asymptotic Analysis of Deep Residual Networks and Convergence of Gradient Descent Methods

#### Renyuan Xu, USC

Residual networks (ResNets) have displayed impressive results in pattern recognition and, recently, have garnered considerable theoretical...

### Math Undergraduate Seminar: Power Sums of Primes in Arithmetic Progression

#### Zhangze Li

Let $\pi(x)=\sum\limits_{p\le x} 1$ be the prime counting function and for $k \in \mathbb{R}$ define...

### AIM Seminar: On the Positive Definiteness of Response Functions in the Time Domain

#### Emanuel Gull, University of Michigan, Department of Physics

Response functions of quantum systems, such as electron Green’s functions, magnetic, or charge susceptibilities, describe the response of...

### 2023 Annual Ford Lecture in Physics | Secrets of Einstein's Equation

#### Sean Carroll, Homewood Professor of Natural Philosophy (Johns Hopkins University)

Albert Einstein is indelibly associated with a famous equation: E=mc^2, relating the mass of an object to its energy. But that is not what...

### ISRMT seminar: Moment matrix and C-Toda lattice hierarchy

#### Guo-Fu Yu (Shanghai Jiao Tong University)

In this talk, we focus on the reduction of the 2-dimensional Toda hierarchy. Based on the Gauss-Borel decomposition of the moment matrix and...

### Multistage distributionally robust optimization with adapted Wasserstein distance

#### Rui Gao

In this talk, we will discuss multistage distributionally robust optimization in which the uncertainty set of stochastic processes is...