Events and Activities

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

Apr
19
2024

Condensed Learning Seminar

Étale Hyperdescent
2:30pm|Princeton University, Fine Hall 314

Introduce the notion of hypersheaf and discuss its basic properties and equivalent characterizations. In particular, discuss the notions of homotopy and cohomological dimensions and their relation to hyperdescent. Sketch the proof of the fact for...

Apr
19
2024

Joint IAS/PU Analysis Seminar

Generalized Cylinder Limits of Ricci Flow Singularities
Natasa Sesum
2:30pm|Simonyi Hall 101 and Remote Access

We study multiply warped product geometries MN:=Bn×Fn1×···×FnA 

g = g_B + \sum_{a=1}^A v_a^2 g_{F^{n_a}} and show that for an open set of initial data within multiply warped product geometries the Ricci flow starting at any of those develops...

Apr
19
2024

Joint IAS/PU Analysis Seminar

An Energy Model for Harmonic Graphs with Junctions
Ovidiu Savin
4:00pm|Simonyi Hall 101 and Remote Access

We consider an energy model for N ordered elastic membranes subject to forcing and boundary conditions. The heights of the membranes are described by real functions u_1, u_2,...,u_N, which minimize an energy functional involving the Dirichlet...

Apr
22
2024

Computer Science/Discrete Mathematics Seminar I

Additive Combinatorics Without Groups
Huy Tuan Pham
11:00am|Simonyi 101 and Remote Access

Subsets $A$ of an abelian group with a small doubling $|A+A|/|A|$ have been extensively studied, and results of Freiman, Ruzsa and Green give fundamental structural descriptions of such sets. These have important applications across combinatorics...

Apr
22
2024

IAS CMT/QFT Group Meeting

Lattice Realization of Topological Defects in 2D Conformal Field Theories (CFTs)
Madhav Sinha
11:00am|Bloomberg Lecture Hall (IAS)

Abstract: Topological defect lines in 2D CFTs have found resurgence in the context of categorical symmetries. In this talk, I will present the lattice realization of these for unitary Minimal Models. I will use Spin chains, such as Transverse Field...

Apr
22
2024

Princeton University Galread [Galactic/Extragalactic Reading Group]

TBA
11:00am|Zoom and Peyton Hall, Grand Central

Each week, we hold a relatively informal seminar/discussion series with an emphasis on extra-galactic and large-scale structure astrophysics.

During Galread a leader/visitor presents a recent paper to the discussion group. The PDF of the paper is...