Previous Conferences & Workshops

May
10
2024

Analysis and Mathematical Physics

Supersymmetric Approach to the Analysis of Random Band Matrices
2:30pm|Simonyi Hall 101 and Remote Access

We discuss an application of the SUSY approach to the analysis of spectral characteristics of hermitian and non hermitian random band matrices. In 1D case the obtained integral representations for correlation functions of characteristic polynomials...

May
10
2024

Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Invariant Sets and Hyperbolic Periodic Orbits
Viktor Ginzburg
9:15am|Remote Access

The presence of hyperbolic periodic orbits or invariant sets often has an affect on the global behavior of a dynamical system. In this talk we discuss two theorems along the lines of this phenomenon, extending some properties of Hamiltonian...

May
09
2024

Joint PU/IAS Number Theory

Derived Hecke Action For Weight One Modular Forms Via Classicality
Gyujin Oh
3:30pm|Simonyi 101 and Remote Access

It is known that a p-adic family of modular forms does not necessarily specialize into a classical modular form at weight one, unlike the modular forms of weight 2 or higher. We will explain how this obstruction to classicality leads to a "derived"...

May
06
2024

Joint IAS/Princeton Arithmetic Geometry Seminar

The Geometric Langlands Conjecture
Sam Raskin
3:30pm|Simonyi Hall 101 and Remote Access

I will describe the main ideas that go into the proof of the (unramified, global) geometric Langlands conjecture. All of this work is joint with Gaitsgory and some parts are joint with Arinkin, Beraldo, Chen, Faergeman, Lin, and Rozenblyum. I will...

May
06
2024

Symplectic Geometry Seminar

Symplectic Aspects of the Hilbert-Smith Conjecture and $p$-adic Actions.
Egor Shelukhin
12:30pm|Simonyi 101 and Remote Access

I will discuss a recent proof of new cases of the Hilbert-Smith conjecture for actions by homeomorphisms of symplectic nature. In particular, it rules out faithful actions of the additive $p$-adic group in this setting and provides further...

May
06
2024

Computer Science/Discrete Mathematics Seminar I

Rounding Large Independent Sets on Expanders
Tim Hsieh
11:00am|Simonyi 101 and Remote Access

In this talk, we will present a new approach for approximating large independent sets when the input graph is a one-sided expander—that is, the uniform random walk matrix of the graph has second eigenvalue bounded away from 1. Specifically, we show...

May
03
2024

Analysis and Mathematical Physics

Some Analytic Applications of the Polynomial Method
2:30pm|Simonyi Hall 101 and Remote Access

This talk will be about the polynomial method and its applications to questions that have traditionally been tackled by Fourier analysis, with emphasis on the Kakeya conjecture, the cap set problem, arithmetic progressions in dense sets, and the...

May
03
2024

Condensed Learning Seminar

Grothendieck-Riemann-Roch, Part II
2:30pm|Princeton University, Fine 214

Prove the Grothendieck–Riemann–Roch theorem: first prove [And23, Satz 6.12] and then explain the sketch of the proof on [And23, p. 38] by proving the relevant statements from the second half of [CS22, Lecture 15].

May
03
2024

Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Symplectic Structures from Almost Symplectic Structures
Agustin Moreno
9:15am|Remote Access

In this talk, we will consider a stabilized version of the fundamental existence problem of symplectic structures (cf. Open Problem 1 in McDuff & Salamon). Given a formal symplectic manifold, i.e. a closed manifold $M$ with a non-degenerate 2-form...