Previous Conferences & Workshops

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
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
17
2026

Joint IAS/PU Groups and Dynamics Seminar

Horocycle Flow at Sparse Times
Adam Kanigowski
4:30pm|314 Fine Hall

We discuss recent results on distribution of orbits of horocycle flows at subquadratic polynomial times (joint work with M. Radziwill) and at the prime counting function $\Omega$ (joint work with K. Loyd)

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
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

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
16
2026

Joint IAS/PU Arithmetic Geometry

A Conjectural Formula for the Cohomology of Congruence Locally Symmetric Spaces
Matthew Emerton
3:30pm|Princeton University, Fine Hall 224

The main goal of this talk is to state a conjectural formula for the compactly supported cohomology of  $\Gamma$ \ $G$ / $K$ when $G$ is a semisimple real group with maximal compact $K$, and $\Gamma$ is a congruence subgroup. The formula gives a...

Feb
16
2026

Members' Colloquium

Between Schanuel's Conjecture and Fuglede's Conjecture
1:30pm|Simonyi 101

I will describe an application of point-counting on tame real sets and functional transcendence to a problem in harmonic analysis. I will touch on the traditional diophantine applications of these ideas to highlight the new features of this not-so...

Feb
13
2026

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

Complexity of Hofer’s geometry in some higher dimensional manifolds
Zhijing Wendy Wang
9:15am|Remote Access

The group of Hamiltonian diffeomorphisms , equipped with the Hofer metric , is a central object in symplectic topology. A landmark result by Polterovich and Shelukhin established the profound geometric complexity of this group for surfaces and their...