Previous Conferences & Workshops

Dec
01
2025

Joint IAS/PU Arithmetic Geometry

Synthetic $E_{\infty}$-rings
Andrew Senger
3:30pm|Simonyi 101 and Remote Access

In this talk, I will describe a variant of the category of derived rings that we call the category of synthetic $E_{\infty}$-rings. The category of derived rings may be viewed as the derived category of the category of discrete commutative rings...

Dec
01
2025

Members' Colloquium

Mathematical Exploration and Discovery at Scale
1:30pm|Simonyi 101 and Remote Access

Machine learning is transforming mathematical discovery, enabling advances on longstanding open problems. In this talk, I will discuss AlphaEvolve, a general-purpose evolutionary coding agent that uses large language models to autonomously discover...

Dec
01
2025

Computer Science/Discrete Mathematics Seminar I

How Low Can We Go? Exploring Minimal Assumptions in Quantum Cryptography
Dakshita Khurana
11:00am|Simonyi Hall 101 and Remote Access

In this talk, I will explore the fascinating landscape of assumptions in quantum cryptography—especially, how little we need to assume to build secure quantum protocols. We will cover key cryptographic primitives including quantum encryption...

Nov
28
2025

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

Three 20 Minute Research Talks
Julio Sampietro Christ and Salammbo Connolly
9:15am|Remote Access

Julio Sampietro Christ  (Université Paris-Saclay) : Equivariant Lagrangian Non-Displacements

Lagrangian Floer theory is useful to detect non-displaceability of Lagrangian submanifolds via Hamiltonian isotopies. A related question, in the presence of...

Nov
25
2025

Analysis and Mathematical Physics

Highly Irregular Microstructures and $T_N$ Configurations
John Ball
2:30pm|Simonyi Hall 101 and Remote Access

Remarkable martensitic microstructures are observed in the alloy  $Ti_{76}Nb_{22}Al_{2}$ , which undergoes a cubic to orthorhombic transformation with six martensitic variants $\mathbf U_i=\mathbf U_i^T>0$ having middle eigenvalue $\lambda_2(\mathbf...

Nov
25
2025

Joint IAS/PU Symplectic Geometry Seminar

Subleading Asymptotics of ECH Capacities and Symplectic Packing Problems
Dan Cristofaro-Gardiner
2:00pm|Simonyi Classroom (S-114)

We compute the subleading asymptotics of the ECH and elementary ECH capacities of toric domains and show that they recover the perimeter in the liminf, without any genericity required.  As an application, we give the first examples of the failure of...

Nov
25
2025

Computer Science/Discrete Mathematics Seminar II

Linial-Meshulam Complexes
10:30am|Simonyi 101 and Remote Access

Inspired by the Erdos--Renyi model for random graphs, Linial and Meshulam devised in 2006 a model for random 2-dimensional simplicial complexes. The goal of this talk (and the next) is to present some nice results about the behavior of these random...

Nov
24
2025

Joint IAS/PU Analysis and Mathematical Physics

Navier-Stokes Equations at Critical Regularity
4:30pm|Simonyi Hall 101 and Remote Access

This talk is concerned with solutions of the 3D incompressible Navier-Stokes equations that are bounded in a critical space. From small initial data, these solutions are known to be globally well-posed due to classical work of Fujita-Kato and others...

Nov
24
2025

Joint IAS/PU Arithmetic Geometry

Characteristic Classes of $p$-adic Local Systems
Alexander Petrov
3:30pm|Princeton University, Fine 224

A cohomology class of the group GL_n(Q_p) gives rise to a characteristic class of Q_p-local systems on algebraic varieties or topological spaces. It turns out that all rational primitive cohomology classes (in degrees >1) give vanishing...

Nov
24
2025

Joint IAS/PU Analysis and Mathematical Physics

Inviscid Limits From Compressible Navier-Stokes to Small BV Solutions to Euler
Alexis Vasseur
3:00pm|Simonyi Hall 101 and Remote Access

The compressible Euler equation can lead to the emergence of shock discontinuities in finite time, notably observed behind supersonic planes. A very natural way to justify these singularities involves studying solutions as inviscid limits of Navier...