Events and Activities

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

Apr
20
2026

Members' Colloquium

Homological Stability of Moduli Spaces
1:30pm|Simonyi 101 and Remote Access

Homological stability has emerged over the past decades as an organizing principle in topology and beyond. Broadly speaking, many sequences of moduli spaces exhibit the striking phenomenon that their homology stabilizes as the underlying complexity...

Apr
20
2026

Joint IAS/PU Arithmetic Geometry

Cohen-Macaulayness of Local Models via Shellability of the Admissible Set
Xuhua He
3:30pm|Simonyi 101 and Remote Access

The singularities of integral models of Shimura varieties are encoded in their local models, schemes over the $p$-adic integers whose special fibers are unions of affine Schubert cells. A fundamental question is whether these local models are Cohen...