Previous Conferences & Workshops

Mar
11
2024

Special Year Workshop on p-adic Arithmetic Geometry

Igusa Stacks and Local-Global Compatibility
Mingjia Zhang
4:30pm|Wolfensohn Hall

Abstract: Recently the work of Fargues--Scholze provides a geometrization of the local Langlands conjecture. It is natural to ask if in this context any form of local-global compatibility can be stated/verified. We discuss some expectations and...

Mar
11
2024

Special Year Workshop on p-adic Arithmetic Geometry

p-adic Non-Abelian Hodge Theory via Moduli Stacks
Ben Heuer
2:30pm|Wolfensohn Hall

Abstract: The p-adic Simpson correspondence aims to give a non-abelian generalisation of the Hodge-Tate decomposition. Following an idea of Faltings, it should relate pro-étale vector bundles on smooth rigid spaces over Cp to Higgs bundles. In this...

Mar
11
2024

Symplectic Geometry Seminar

Relative Calabi-Yau Structures for Legendrian Contact Homology
Joshua Sabloff
12:30pm|Rubenstein Commons | Meeting Room 5

Legendrian Contact Homology (LCH) was among the first, and is still among the most important, non-classical invariants of Legendrian knots. In this talk, I will tell a story that builds up ever more sophisticated analogues of Poincare Duality in LCH...

Mar
11
2024

Special Year Workshop on p-adic Arithmetic Geometry

Singularities in Mixed Characteristic via Alterations
Karl Schwede
12:00pm|Wolfensohn Hall

Abstract: Multiplier ideals and test ideals are ways to measure singularities in characteristic zero and p > 0 respectively.  In characteristic zero, multiplier ideals are computed by a sufficiently large blowup by comparing the canonical module of...

Mar
11
2024

Computer Science/Discrete Mathematics Seminar I

Sparsification of Gaussian Processes
Anindya De
11:00am|Simonyi 101 and Remote Access

In this talk, we will show that the supremum of any centered Gaussian process can be approximated to any arbitrary accuracy by a finite dimensional Gaussian process where the dimension of the approximator is just dependent on the target error. As a...

Mar
11
2024

Special Year Workshop on p-adic Arithmetic Geometry

Revisiting the Motivic Cohomology of Schemes
Matthew Morrow
10:00am|Wolfensohn Hall

Abstract: Since the original conjectures of Beilinson and Lichtenbaum in the 80s, several versions of motivic cohomology have been introduced and developed, notably by Voevodsky. Most classically, Bloch's higher Chow groups provide the accepted...

Mar
11
2024

Workshop on p-adic Arithmetic Geometry (Spring)

10:00am|Wolfensohn Hall

Sponsored by Dr. John P. Hempel and Simons Foundation

Organizers: Bhargav Bhatt (IAS/Princeton/Michigan), Johan DeJong (Columbia/IAS), Jacob Lurie (IAS)

Invited Speakers:
Kestutis Cesnavicius, Université Paris-Saclay/IAS
Pierre Colmez, IMJ-PRG/IAS
Lars...

Mar
08
2024

Analysis and Mathematical Physics

Variations on Fefferman's Ball Multiplier Theorem
2:30pm|Simonyi Hall 101 and Remote Access

What happens to an Lp function when one truncates its Fourier transform to a domain? This question is now rather well understood, thanks to famous results by Marcel Riesz and Charles Fefferman, and the answer depends on the domain: if it is a...

Mar
08
2024

Special IAS/PU Symplectic Geometry Seminar

Invariant Sets in Three-Dimensional Energy Surfaces
Rohil Prasad
1:00pm|Simonyi 101 and Remote Access

Let $H$ be any smooth function on $R^4$ and let $Y$ be any compact and regular level set. I'll explain a proof that $Y$ admits an infinite family of proper compact subsets that are invariant under the Hamiltonian flow, which moreover have dense...

Mar
08
2024

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

Strongly Invertible Knots, Khovanov Homotopy, and Localization
Robert Lipshitz
9:15am|Remote Access

Strong inversions are a class of order-2 symmetries of knots in . Building on work of Seidel-Smith, Lidman-Manolescu, Stoffregen-Zhang, and others, we will describe a relationship between the Khovanov homology of a knot with a strong inversion and...