Events and Activities

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

Mar
24
2026

Computer Science/Discrete Mathematics Seminar II

50 Years of Expansion in Groups
10:30am|Simonyi 101 and Remote Access

I plan to survey the many ways we have today of constructing expanding Cayley graphs of finite groups, and the ideas behind their analysis (some useful beyond that purpose). I want to highlight that despite a comprehensive understanding of achieving...

Mar
24
2026

Institute for Advanced Study / Princeton University Joint Astrophysics Colloquium

Probing Dark Energy w/ Galaxy Clusters and Cosmic Shear
Eduardo Rozo
11:00am|Peyton Hall Auditorium

Growth structure probes have long been consider an indispensable tool for the study of dark energy. In this talk, I will present an analysis of the abundance of DES galaxy clusters to argue against the dynamical dark energy interpretation of the...

Mar
24
2026

Rutgers University Astrophysics Seminar

To metallicity and beyond: untangling the chemical properties of galaxies across mass and redshift
Ryan Trainor
11:00am|Serin Hall Rm 330W, Rutgers and Zoom

The chemical evolution of galaxies traces a host of physical processes: the accretion of intergalactic gas, feedback-driven outflows, and nucleosynthesis via stars and supernovae. A major goal of current galaxy surveys is to characterize these...

Mar
24
2026

IAS Phenomenology Lunch and Meet

Information Discussions on Phenomenology and New Theories beyond the Standard Model
12:30pm|Bloomberg Hall Biology Conference Room (1st Floor, Room 113)

This semester, we will be beginning a *very informal* get-together every Monday of people interested in/working on phenomenology and new theories beyond the standard model.  The idea is to discuss over lunch, perhaps meet up around 12.20, grab lunch...

Mar
24
2026

Joint IAS/PU Symplectic Geometry Seminar

Non-convex Hypersurfaces And Robust Heterodimensional Cycles
Julian Chaidez
1:00pm|Fine Hall 401

A closed hypersurface in a contact manifold is convex if it admits a transverse contact vector field. A closed hypersurface is robustly non-convex if it cannot be smoothly approximated by a convex hypersurface. The existence of such hypersurfaces...

Mar
24
2026

Analysis and Mathematical Physics

Existence and Regularity of Nonlocal Minimal Surfaces
Michele Caselli
2:30pm|Simonyi Hall 101 and Remote Access

In the '80s, Yau conjectured that every closed Riemannian 3-manifold contains infinitely many smooth minimal hypersurfaces. In this talk, I will present a Yau-type existence result for nonlocal minimal surfaces and discuss how one can recover the...

Mar
24
2026

IAS Amplitudes Group Meeting

Scattering Amplitudes and Geometry in Free Surface Hydrodynamics
Nail Ussembayev
2:30pm|Bloomberg Lecture Hall (IAS)

Abstract: We consider the scattering problem of weakly nonlinear gravity waves on the surface of a two-dimensional incompressible fluid of infinite depth. The leading nonlinear dynamics is governed by four-wave interactions; however, a surprising...