Events and Activities

Explore current and upcoming events and activities happening at the Institute for Advanced Study.

Feb
17
2026

Computer Science/Discrete Mathematics Seminar II

Obfuscation is a Wheelbarrow: How to Build Long-Sought Cryptography Using Complexity Theory
10:30am|Simonyi 101 and Remote Access

Over the past 50 years, cryptographers have constructed a number of surprising and important primitives like public-key encryption, which allows strangers to communicate privately even if eavesdroppers hear everything they say. However, there are...

Feb
17
2026

Joint IAS/PU Symplectic Geometry Seminar

Relative Calabi-Yau Structures with Applications to the Augmentation Variety
Georgios Dimitroglou Rizell
1:00pm|Fine Hall 401

 The Legendrian contact homology dga can in certain situation be endowed with a relative Calabi-Yau structure. We discuss the proof and  geometric consequences for the augmentation variety, e.g. the property of being a holomorphic Lagrangian in...

Feb
17
2026

Analysis and Mathematical Physics

Lengths of Closed Geodesics in Manifolds of Positive Scalar Curvature
Yevgeny Liokumovich
2:30pm|Simonyi Hall 101 and Remote Access

I will prove Gromov's conjecture that every 3-manifold of positive scalar curvature contains a short closed geodesic. The proof uses Min-Max theory of minimal surfaces and a combinatorial version of mean curvature flow. Time permitting, I will...

Feb
18
2026

Special Year Learning Seminar

On Common Roots of Legendre Polynomials
Dan Mangoubi
2:00pm|Simonyi 101

In 2011 Bourgain and Rudnick showed that if $\gamma$ is a curve of non-vanishing curvature on the 2d standard flat torus, then there are no Laplace eigenfunctions of arbitrarily large eigenvalues containing $\gamma$ in their nodal set. We show that...

Feb
18
2026

Mathematical Conversations

Does Life Compute?
6:00pm|Simons Hall Dilworth Room

I'll discuss our attempts to model problems of bio molecular assembly using simple geometric constructions. We contrast how nature makes polyhedra with classical constructions. The issue that really bothers me is this: biomolecular codes are...

Feb
19
2026

Special Year Research Seminar

Bi-\bar{Q}-structure on Shimura Varieties and Quadratic Relations Between CM Period
1:00pm|Simonyi 101

In this talk I will introduce a bi-\bar{Q}-structure on Shimura varieties, propose a hyperbolic analytic subspace conjecture (analogue of Wüstholz’s analytic subgroup theorem in this context), and explain its consequence on quadratic relations...

Feb
19
2026

Joint PU/IAS Number Theory

A Cubic Fourfold with Sextic Dual
Victor Wang
3:30pm|*Princeton University, Fine 214*

I will report on joint work in progress with Tim Browning and Ritabrata Munshi, concerning the use of the circle method to count rational points on a particular cubic hypersurface in six variables. This problem lies at the square-root barrier, and I...