Previous Conferences & Workshops

Nov
27
2023

Joint IAS/Princeton Arithmetic Geometry Seminar

Duality for 𝑝-adic Proétale Cohomology of Stein Spaces
Sally Gilles
4:30pm|Princeton University, Fine Hall 314

I will discuss duality theorems for p-adic proétale cohomology of rigid analytic Stein spaces, in both arithmetic and geometric cases. This is based on a joint work with Pierre Colmez and Wieslawa Niziol.

Nov
27
2023

Symplectic Geometry Seminar

On the Rigidity of Integrable Twist Maps of the 2d-Dimensional Annulus
Alfonso Sorrentino
12:30pm|Simonyi 101 and Remote Access

In the study of Hamiltonian systems, integrable dynamics play a crucial role. Integrability, however, appears to be a delicate property that is not expected to persist under generic small perturbations. Understanding the essence of this fragility...

Nov
27
2023

Computer Science/Discrete Mathematics Seminar I

Recent Progress on Derandomizing Space-Bounded Computation
William Hoza
11:15am|Simonyi 101 and Remote Access

Is randomness ever necessary for space-efficient computation? It is commonly conjectured that L = BPL, meaning that halting decision algorithms can always be derandomized without increasing their space complexity by more than a constant factor. In...

Nov
24
2023

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

C0 Stability of Topological Entropy for 3-Dimensional Reeb Flows
Matthias Meiwes
9:15am|Remote Access

The C0 distance on the space of contact forms on a contact manifold has been studied recently by different authors. It can be thought of as an analogue for Reeb flows of the Hofer metric on the space of Hamiltonian diffeomorphisms. In this talk, I...

Nov
21
2023

Computer Science/Discrete Mathematics Seminar II

Sparsifying Sums of Functions
Yang Liu
10:30am|Simonyi Hall 101 and Remote Access

Consider a function on $R^n$ that can be written as a sum of functions $f = f_1$ + $f_2$ + ... + $f_m$, for $m >> n$.

The question of approximating f by a reweighted sum using only a small number of summands has many applications in CS theory...

Nov
20
2023

Joint IAS/Princeton Arithmetic Geometry Seminar

Algebraic K-theory of Rings of Continuous Functions
Ko Aoki
4:30pm|Simonyi Hall 101 and Remote Access

Recent interactions between condensed mathematics and K-theory have led us to revisit the topic of (nonconnective) algebraic K-theory of topological algebras. In this talk, among recent developments, I will focus on the ring of continuous functions...

Nov
20
2023

Members' Colloquium

Mass Generation By The Higgs Mechanism At All Couplings
Sourav Chatterjee
2:00pm|Simonyi 101 and Remote Access

The Higgs mechanism is a part of the Standard Model of quantum mechanics that allows certain kinds of particles to have nonzero mass. In spite of its great importance, there is no rigorous proof that the Higgs mechanism can indeed generate mass in...

Nov
20
2023

Symplectic Geometry Seminar

On the Existence of Symplectic Barriers
Pazit Haim-Kislev
12:30pm|Simonyi 101 and Remote Access

Results concerning rigidity of Lagrangian submanifolds lie at the heart of symplectic topology, and have been intensively studied since the 1990s. An example for this phenomenon is the concept of Lagrangian Barriers, a form of symplectic rigidity...

Nov
20
2023

Computer Science/Discrete Mathematics Seminar I

Strong Spatial Mixing for Colorings on Trees and its Algorithmic Applications
Nitya Mani
11:15am|Simonyi 101 and Remote Access

Strong spatial mixing (SSM) is an important and widely studied quantitative notion of "correlation decay" for a variety of natural distributions arising in statistical physics, probability theory, and theoretical computer science. One of the most...