Previous Conferences & Workshops

Dec
03
2025

Special Year Learning Seminar

Logarithmic Geometry and Hodge Theory
Michael Barz
2:00pm|Simonyi 101

Ben Bakker explained to us how to construct moduli spaces of polarized Hodge structures, and then produced period maps associated to families of smooth projective varieties. However, in practice one often encounters a family of smooth varieties...

Dec
02
2025

Joint IAS/PU Groups and Dynamics Seminar

Strong Spectral Gap for Geometrically Finite Hyperbolic Manifolds
Dubi Kelmer
4:30pm|Simonyi 101

In this talk I will describe new results establishing the existence of a strong spectral gap for  geometrically finite, n dimensional, hyperbolic manifold with critical exponent greater than $(n-1)/2$. This settles a conjecture of Mohammadi and Oh...

Dec
02
2025

Computer Science/Discrete Mathematics Seminar II

Linial-Meshulam Complexes 2
10:30am|Simonyi 101 and Remote Access

Last week we defined the Linial--Meshulam model for random 2 dimensional simplicial complexes and discussed two notions of connectivity for it: Vanishing of its 1st cohomology with F2 coefficients, and vanishing of its fundamental group. This time...

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...