Previous Conferences & Workshops

Apr
07
2023

Probability Seminar

Topic #1 (Kavvadias): Conformal removability of non-simple Schramm-Loewner evolutions; Topic #2 (Narayanan): Large deviations for random hives and the spectrum of the sum of two random matrices.
Hariharan Narayanan and Konstantinos Kavvadias
10:15am|Simonyi 101 and Remote Access

Topic #1 (Kavvadias): We consider the Schramm-Loewner evolution (SLE_{kappa}) for kappa in (4,8), which is the regime that the curve is self-intersecting but not space-filling. We let K be the set of kappa in (4,8) for which the adjacency graph of...

Apr
06
2023

Joint IAS/PU Number Theory Seminar

Subconvexity for L-functions on U(n) x U(n+1)
Simon Marshall
4:30pm|Simonyi Hall 101 and Remote Access

We prove this bound by first using the unitary Ichino-Ikeda formula of N. Harris to relate the central L-value to an automorphic period integral.  There is a `trivial' bound for this integral, which turns out to correspond to the convexity bound for...

Apr
06
2023

What is...?

What is an Inverse Problem?
Malena Español
1:30pm|Simonyi Hall 101
Apr
05
2023

Analysis and Mathematical Physics

Scattering for nonlinear wave equations
3:00pm|Simonyi Hall 101 and Remote Access

We construct solutions with prescribed radiation fields for wave equations with polynomially decaying sources close to the lightcone. In this setting, which is motivated by semi-linear wave equations satisfying the weak null condition, solutions to...

Apr
04
2023

Special Year Research Seminar

Polynomial Ergodic Theorems for Strongly Mixing Commuting Transformations
Rigoberto Zelada
2:00pm|Simonyi 101 and Remote Access

The goal of this talk is to present new results dealing with the asymptotic joint independence properties of commuting strongly mixing transformations along polynomials. These results form natural strongly mixing counterparts to various weakly and...

Apr
04
2023

Computer Science/Discrete Mathematics Seminar II

Hausdorff Dimension Analogues of the Elekes - Ronyai Theorem and Related Problems
10:30am|Simonyi Hall 101 and Remote Access

If $f$ is a real polynomial and $A$ and $B$ are finite sets of cardinality $n$, then Elekes and Ronyai proved that either $f(A\times B)$ is much larger than $n$, or $f$ has a very specific form (essentially, $f(x,y)=x+y$). In the talk I will tell...

Apr
03
2023

Joint IAS/Princeton Arithmetic Geometry Seminar

Functions on the Commuting Scheme Via Langlands Duality
4:00pm|Princeton University, Fine Hall 314

I will explain how ideas from the (geometric) Langlands program help solve the following purely algebraic problem: describe the ring of conjugation-invariant functions on the scheme of commuting pairs in a complex reductive group. The answer was...

Apr
03
2023

Joint IAS/Princeton University Symplectic Geometry Seminar

Braid Stability for Periodic Orbits of Area-preserving Surface Diffeomorphisms
Michael Hutchings
4:00pm|Simonyi 101 and Remote Access

Given an area-preserving surface diffeomorphism, what can one say about the topological properties of its periodic orbits? In particular, a finite set of periodic orbits gives rise to a braid in the mapping torus, and one can ask which isotopy...