Previous Conferences & Workshops

Mar
07
2025

Marston Morse Lectures

Quantitative Stability in Geometric and Functional Inequalities
3:00pm|Simonyi 101 and Remote Access

Geometric and functional inequalities are fundamental in various mathematical areas, such as the calculus of variations, partial differential equations, and geometry. Classic examples encompass the isoperimetric inequality, Sobolev inequalities, and...

Mar
06
2025

Joint PU/IAS Number Theory

Multiple Dirichlet Series, Moments of L-functions, and Symmetry
Ian Whitehead
3:30pm|*Princeton University, Fine 214*

I will discuss joint work in progress with Will Sawin on function field multiple Dirichlet series constructed based on a set of axioms from algebraic geometry. These series have applications to moments of Dirichlet L-functions for characters of...

Mar
06
2025

What is...?

What is an Open Book Decompositions?
1:00pm|Simonyi Classroom (S-114)

Open book decompositions provide a topological decomposition of a given manifold. We focus on dimension three. While the definition seems to be purely topological, it encodes information about fibered knots, surface dynamics, contact structures of...

Mar
06
2025

Special Year Seminar II

Introduction to Equivariant K-theory
10:00am|Simonyi 101

K-theory arose in the 1950s from Grothendieck’s formulation of the Riemann-Roch theorem – that is, from attempts to calculate spaces of sections of vector bundles on a variety X via intersection theory on X.  An equivariant version was introduced...

Mar
05
2025

Mathematical Conversations

Fair Duels, Digital Halftoning, and Other Mathematical Bit-Balancing Acts
6:00pm|Simons Hall Dilworth Room

What are some of the ways in which binary-valued functions can accurately approximate continuous-valued ones? This talk will be a gentle exposition of the mathematics of "noise-shaping quantization" presented through motivating applications. We will...

Mar
05
2025

Marston Morse Lectures

Quantitative Stability in Geometric and Functional Inequalities
3:00pm|Simonyi 101 and Remote Access

Geometric and functional inequalities are fundamental in various mathematical areas, such as the calculus of variations, partial differential equations, and geometry. Classic examples encompass the isoperimetric inequality, Sobolev inequalities, and...

Mar
05
2025

Special Year Seminar I

Introduction to Equivariant K-theory
2:00pm|Simonyi 101

K-theory arose in the 1950s from Grothendieck’s formulation of the Riemann-Roch theorem – that is, from attempts to calculate spaces of sections of vector bundles on a variety X via intersection theory on X.  An equivariant version was introduced...

Mar
04
2025

Joint IAS/PU Groups and Dynamics Seminar

Approximating Hyperbolic Lattices by Cubulations
Eduardo Reyes
4:00pm|Simonyi 101

The fundamental group of an n-dimensional closed hyperbolic manifold admits a natural isometric action on the hyperbolic space $H^n$. If n is at most 3 or the manifold is arithmetic of simplest type, then the group also admits many geometric actions...

Mar
04
2025

Symplectic Geometry Seminar

Infinity Inner Products and Open Gromov-Witten Invariants
Sebastian Haney
1:00pm|Simonyi 101 and Remote Access

The open Gromov-Witten (OGW) potential is a function defined  on the Maurer-Cartan space of a closed Lagrangian submanifold in a  symplectic manifold with values in the Novikov ring. From the values  of the OGW potential, one can extract so-called...

Mar
04
2025

Computer Science/Discrete Mathematics Seminar II

A Theory of Generalized Boosting
10:30am|Simonyi 101 and Remote Access

Boosting is a fundamental and widely used method in machine learning, which determines that weak learnability of binary functions implies strong learnability. Traditionally, boosting theory has primarily focused on symmetric 0-1 loss functions...