Previous Conferences & Workshops

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...

Mar
03
2025

Joint IAS/PU Arithmetic Geometry

Some remarks on the cohomology of proetale local systems
David Hansen
3:35pm|*Princeton University, Fine Hall 224*

If X is a smooth proper rigid variety over C_p and L is a Z_p-local system on X, the cohomology groups H*(X,L) are finitely generated Z_p-modules by a basic result of Scholze. If L is merely a Q_p-local system, its cohomology groups are still finite...

Mar
03
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
03
2025

Computer Science/Discrete Mathematics Seminar I

Improved Fault-Tolerant Non-Clifford Gates (or: How to Multiply Quantumly)
Louis Golowich
10:30am|Simonyi Hall 101 and Remote Access

A principal challenge in realizing the potential of quantum computing lies in our ability to perform computations fault-tolerantly, in the presence of the noise inherent to quantum devices. Non-Clifford quantum gates, which are analogous to the...

Feb
27
2025

Joint PU/IAS Number Theory

Algebraicity of Spin L-functions for GSp_6
3:30pm|Simonyi 101 and Remote Access

I will discuss recent results for algebraicity of critical values of Spin L-functions for GSp_6. I will also discuss ongoing work toward the construction of p-adic L-functions interpolating these values. I will explain how this work fits into the...

Feb
27
2025

What is...?

Combinatorial Patchwork
1:00pm|Simonyi Classroom (S-114)

In the 1970s, Viro's method paved an important path in the study of the topology of real algebraic varieties and became a precursor to tropical geometry. This method involves subdividing an integer polytope and using the information from each of its...

Feb
26
2025

Mathematical Conversations

How and Why to Formalize Mathematics
6:00pm|Simons Hall Dilworth Room

After a short crash course in using Lean to formalize mathematics, we will discuss potential applications to and implications for mathematics education, publication, and research.