Previous Conferences & Workshops

Dec
08
2023

Condensed Learning Seminar

Solid Quasi-Coherent Sheaves
Hanlin Cai
2:30pm|Princeton University, Fine Hall 314

We will globalize the notion of solid modules to an arbitrary scheme/discrete adic space.

Dec
08
2023

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

Three 20-min Research Talks
Julien Dardennes, Arnaud Maret and Luya Wang
9:15am|Remote Access
  • Julien Dardennes:The Coarse Distance from Dynamically Convex to Convex:

    Chaidez and Edtmair have recently found the first examples of dynamically convex domains in $R^4$ that are not symplectomorphic to convex domains, answering a long-standing open...

Dec
06
2023

Mathematical Conversations

Grothendieck's Nightmare and Subsequent Dreams
6:00pm|Birch Garden, Simons Hall

In Récoltes et Semailles, Grothendieck explains that, exactly once in his life, doing math had become painful for him. It was at the end of the analytic part of his career, when he was obsessed by the approximation problem. I will explain what this...

Dec
06
2023

Special Year Seminar

Mod-p Poincare Duality in p-adic Analytic Geometry
2:00pm|Simonyi 101 and Remote Access

Etale cohomology of $F_p$-local systems does not behave nicely on general smooth p-adic rigid-analytic spaces; e.g., the $F_p$-cohomology of the 1-dimensional closed unit ball is infinite. 

However, it turns out that the situation is much better if...

Dec
05
2023

Computer Science/Discrete Mathematics Seminar II

Coboundary and Cosystolic Expansion
10:30am|Simonyi Hall 101 and Remote Access

Coboundary expansion and cosystolic expansion are generalizations of edge expansion to hypergraphs. In this talk, we will first explain how the generalizations work. Next we will motivate the study of such hypergraphs by looking at their...

Dec
04
2023

Joint IAS/Princeton Arithmetic Geometry Seminar

Mirror Symmetry and the Breuil-Mezard Conjecture
Tony Feng
4:30pm|Simonyi Hall 101 and Remote Access

The Breuil-Mezard Conjecture predicts the existence of hypothetical "Breuil-Mezard cycles" that should govern congruences between mod p automorphic forms on a reductive group G. Most of the progress thus far has been concentrated on the case G = GL...

Dec
04
2023

Members' Colloquium

Einstein, P-adic Sudoku, Domino, and Decidability
2:00pm|Simonyi 101 and Remote Access

Translational tiling is a covering of a space (such as Euclidean space) using translated copies of one building block, called a "translational tile'', without any positive measure overlaps.  

Can we determine whether a given set is a translational...

Dec
04
2023

Symplectic Geometry Seminar

On Some Impact-like Hamiltonian Systems
Vered Rom-Kedar
12:30pm|Simonyi 101 and Remote Access

The dynamics associated with mechanical Hamiltonian flows with smooth potentials that include sharp fronts may be modeled, at the singular limit, by Hamiltonian impact systems: a class of generalized billiards by which the dynamics in the domain’s...