Events and Activities

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

Apr
21
2026

Computer Science/Discrete Mathematics Seminar II

A More Efficient Sifting Lemma and a Stronger 3-Player Communication Lower Bound
10:30am|Simonyi 101 and Remote Access

A central goal in complexity theory is to prove separations between randomized and deterministic models of computation. In communication complexity, a key challenge is to establish lower bounds for multiparty protocols in the number-on-forehead (NOF...

Apr
21
2026

Joint IAS/PU Symplectic Geometry Seminar

Frobenius Structures on Quantum Connections of Calabi--Yau 3-Folds
Jae Hee Lee
1:00pm|Simonyi 101 and Remote Access

The quantum connection is a flat connection arising from genus 0 Gromov--Witten theory. They can be defined integrally for sufficiently positive symplectic manifolds, allowing one to consider their characteristic p or p-adic versions which bear...

Apr
21
2026

Analysis and Mathematical Physics

Dissipation Concentration in Two-Dimensional Fluids
Luigi De Rosa
2:30pm|Simonyi Hall 101 and Remote Access

We give several constraints on the dissipation measure arising in the inviscid limit of two-dimensional incompressible fluids under minimal assumptions on the initial datum. None of them is replicable in three dimensions, highlighting the non...

Apr
22
2026

Mathematical Conversations

Dropping the Regulator
6:00pm|Birch Garden, Simons Hall

As indicated by its name the regulator governs the behavior of objects, such as class numbers, in various settings. Separating it out, "the fusion problem" is a major challenge.

Apr
23
2026

Special Year Research Seminar

On the Universality of Motivic Cohomology
1:00pm|Simonyi 101

A category of motives is an axiomatic framework in which several cohomology theories from algebraic geometry are represented. While Morel and Voevodsky's classical framework of motivic homotopy theory focused on $A^1$-invariant cohomology theories...

Apr
24
2026

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

Density of Fibers for the Filtered Fukaya Category of a Cotangent Bundle
Stéphane Guillermou
9:15am|Remote Access

A well-known result of Abouzaid says that the wrapped Fukaya category of a cotangent bundle is generated by one cotangent fiber. In the filtered case this is not true, but the filtered Fukaya category comes with a notion of interleaving distance. We...

Apr
24
2026

Special Analysis and Mathematical Physics

Conformal Bootstrap for Probabilistic Models and the Spectral Theory of Automorphic Forms
Dalimil Mazac
4:15pm|Simonyi Hall 101 and Remote Access

The conformal bootstrap has proven very powerful for analyzing reflection-positive conformal models. In my talk, I will review this method and suggest a way to generalize it beyond the reflection-positive case, drawing inspiration from the spectral...

Apr
27
2026

Computer Science/Discrete Mathematics Seminar I

Locally Decodable Codes and Representations of Finite Groups
Zeev Dvir
11:00am|Simonyi Hall 101 and Remote Access

Locally Decodable Codes (LDCs) are a special type of error correcting codes which are constructed from finite point sets that support many small linear dependencies (e.g. many collinear triples). Despite their importance, there are still huge gaps...