Past Events

E.g., Dec 4, 2025

Anwesh Ray & Tam Nguyen


A Morning of Iwasawa theory and Galois cohomology

December 4, 2025

Math 102

Anwesh Ray

Title: Massey Products and the Iwasawa Theory of Elliptic Curves Abstract: Elliptic curves give rise to rich families of Galois representations whose associated Selmer groups encode arithmetic information, including data related to the Mordell-Weil... Read more

  • Number Theory

Steven Amelotte

Carleton U
Homotopy types of moment-angle complexes and almost linear resolutions

December 2, 2025

Toric topology assigns to each simplicial complex K a space with a torus action, called the moment-angle complex, which is defined as a polyhedral product or (homotopy) colimit over the face category of K. These spaces play a universal role in toric topology and control the homotopy groups of... Read more

  • Topology

Dr. Wenzheng Shi

Courant Institute, NYU
Modeling Actin Dynamics Across Scales: From Noisy Leading Edges to Chiral Microtissues

December 1, 2025

Math Annex: MATX 1100

Cells constantly reorganize the actin cytoskeleton to break symmetry, align with neighbors, and push their edges forward. There is a lot of quantitative data on these processes, but turning such data into testable mechanistic models remains a challenge.

I will first focus on collective... Read more

  • Mathematical Biology

Krystal Taylor

The Ohio State University
Intricate Structure, Kakaya sets, and Prescribed Projections

November 28, 2025

ESB 2012 and Zoom

Measure zero sets containing intricate structure are foundational in geometric measure theory. These include Besicovitch sets in the plane (also known as Kakeya sets), which are measure zero sets containing a line in every direction. Closely related to the concept of Besicovitch sets is Davies'... Read more

Alberto Verjovsky

Instituto de Matemáticas, UNAM
Adelic Loop Groups

November 26, 2025

Math 126

We define the adelic sphere \(\mathbb{C}P^1_\mathbb{Q}\) , which is the adelic version of the Riemann sphere, and it is a pro-algebraic Riemann surface; topologically, it is the suspension of the adelic one-dimensional solenoid \(A/\mathbb{Q}\) (which in turn is a fiber bundle over the circle,... Read more

  • Topology

Yucheng Liu

Peking University
Subcritical two-point functions for high-dimensional statistical mechanical models

November 26, 2025

ESB 2012

The subcritical two-point function for the Ising model, percolation, or the self-avoiding walk on Zd, decays like its critical counterpart when x is small, and exhibits the Ornstein--Zernike decay when x is large. We report recent progress on the slightly subcritical two-point function for the... Read more

  • Probability

Tainara Borges

The University of Pennsylvania
Falconer-type results for finite graphs with multiple pins

November 26, 2025

ESB 4133 (PIMS Library)

Falconer-type problems seek Hausdorff-dimension thresholds guaranteeing that thin subsets of R d contain rich geometric patterns. For a compact set E ⊂ R d , the classical object is the distance set ∆(E) = { |x − y| : x, y ∈ E }, and its pinned variant ∆y (E) = { |x − y| : x ∈ E }. Falconer’s... Read more

  • Harmonic Analysis and Fractal Geometry

Sug Woo Shin

UC Berkeley
The fundamental lemma and stabilization

November 26, 2025

MATX 1102

Motivated by the Langlands functoriality conjecture, we would like to stabilize the (twisted) trace formula following Langlands, Kottwitz, Arthur, Clozel, Labesse, and Moeglin-Waldspurger. The goal of this expository talk is to make sense of this, in some detail as far as regular elliptic terms... Read more

  • Number Theory

Dr. Anamika Agrawal

Allen Institute, University of Washington
From Form to Function: Mathematical models to translate cellular physiology into neural function and dysfunction

November 26, 2025

ESB 5104

Neurons are often viewed as the fundamental units of computation, yet they are also living cells that must sustain this computation within the physical and metabolic limits of biology. In this talk, I present a quantitative framework for understanding neural function as a problem of optimization... Read more

  • Mathematical Biology


A Morning of Arithmetic of Algebraic Groups

November 26, 2025

MATX 1102

Join us on November 26th for a morning of arithmetic of algebraic groups.

Organizer: Sujatha Ramdorai

SCHEDULE TIME SPEAKER TITLE & ABSTRACT 10:30 AM - 11 AM Mishty Ray Geometric... Read more
  • Algebra and Algebraic geometry