Previous Conferences & Workshops

Feb
17
2023

Probability Seminar

Topic #1: SLE/GFF Coupling, Zipping Up, and Quantum Length, Topic #2: The Liouville conformal field theory quantum zipper
Greg Lawler and Morris Ang
10:15am|Simonyi 101 and Remote Access

Speaker #1 (Lawler): I will present a somewhat novel approach to known relationships (in works of Sheffield, Miller, and others) between SLE and GFF, the exponential of the GFF (quantum length/area), and Minkowski content of paths. The Neumann GFF...

Feb
17
2023

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

Hypersurface Singularities and Spectral Invariants
Yusuke Kawamoto
9:15am|Remote Access

We discuss the relation between hypersurface singularities (e.g. ADE, $\widetilde{E}_{6},\widetilde{E}_{7},\widetilde{E}_{8}$, etc) and spectral invariants, which are symplectic invariants coming from Floer theory.

Feb
16
2023

Joint IAS/PU Number Theory Seminar

An Euler System for the Symmetric Square of a Modular Form
Chris Skinner
4:30pm|Simonyi Hall 101 and Remote Access

I will explain a new construction of an Euler system for the symmetric square of an eigenform and its connection with L-values. The construction makes use of some simple Eisenstein cohomology classes for Sp(4) or, equivalently, SO(3,2). This is an...

Feb
15
2023

Mathematical Conversations

Kahler Space Forms and Symplectomorphisms
6:00pm|Birch Garden, Simons Hall

In this talk, I will discuss a possible symplectic version of Smale's conjecture on diffeomorphism groups. We will provide some evidence for it and suggest some preliminary questions about complex hyperbolic manifolds to explore. 

Feb
15
2023

Analysis and Mathematical Physics

Degenerate Dispersion and Illposedness for Generalized SQG Equations
Dr. In-Jee Jeong
3:00pm|Simonyi Hall 101 and Remote Access

Given a linear equation whose principal term is given by a degenerate dispersive pseudo-differential operator, we provide a framework for the construction of degenerating wave packet solutions. As an application, we prove strong ill-posedness for...

Feb
15
2023

Special Year Learning Seminar

Strong Stationarity and Multiplicative Functions
10:30am|Simonyi 101 and Remote Access

The notion of strong stationarity was introduced by Furstenberg and Katznelson in the early 90's in order to facilitate the proof of the density Hales-Jewett theorem. It has recently surfaced that this strong statistical property is shared by...

Feb
14
2023

Special Year Research Seminar

Incidence Theory and Uniform Distribution in Higher Dimensions
Alex Iosevich
2:00pm|Simonyi 101 and Remote Access

Incidence bound for points and spheres in higher dimensions generally becomes trivial in higher dimensions due to the existence of the Lenz example consisting of two orthogonal circles in ${\Bbb R}^4$, and the corresponding construction in higher...

Feb
14
2023

Computer Science/Discrete Mathematics Seminar II

Rainbow Matchings in Hypergraphs
10:30am|Simonyi Hall 101 and Remote Access

Suppose we are given matchings $M_1,....,M_N$ of size t in some r-uniform hypergraph, and let us think of each matching having a different color. How large does N need to be (in terms of t and r) such that we can always find a rainbow matching of...

Feb
13
2023

IAS/Princeton Arithmetic Geometry Seminar

Integrality of the Betti Moduli Space
Johan De Jong
4:30pm|Simonyi Hall 101 and Remote Access

Let X be a smooth projective variety over the complex numbers. Let M be the moduli space of irreducible representations of the topological fundamental group of X of a fixed rank r. Then M is a finite type scheme over the spectrum of the integers Z...

Feb
13
2023

Members' Colloquium

Floer Theories and Reeb Dynamics for Contact Manifolds
2:00pm|Simonyi Hall 101 and Remote Access - see Zoom link below

Contact topology is the study of certain geometric structures on odd dimensional smooth manifolds. A contact structure is a hyperplane field specified by a one form which satisfies a nondegeneracy condition called maximal non-integrability. The...