Previous Conferences & Workshops

Oct
15
2024

Bourgain Lecture

The Ramsey Numbers – New Results and New Perspectives
3:45pm|Simonyi 101

In this talk I will try to motivate the interest and some of the mystery in the Ramsey numbers R(k), which are fundamental quantities in combinatorics. I will go on to discuss some recent progress on our understanding of these numbers and make some...

Oct
15
2024

Analysis and Mathematical Physics

Serrin’s Overtermined Problem In Rough Domains
2:30pm|Simonyi Hall 101 and Remote Access

The classical Serrin’s overdetermined theorem states that a C^2 bounded domain, which admits a function with constant Laplacian that satisfies both constant Dirichlet and Neumann boundary conditions, must necessarily be a ball. While extensions of...

Oct
15
2024

Symplectic Geometry Seminar

Relative Symplectic Cohomology of Pairs
Adi Dickstein
1:00pm|Simonyi 101 and Remote Access

Relative symplectic cohomology, an invariant of subsets in a symplectic manifold, was recently introduced by Varolgunes. In this talk, I will present a generalization of this invariant to pairs of subsets, which shares similar properties with the...

Oct
15
2024

Computer Science/Discrete Mathematics Seminar II

Analytic Insights into the Zig-Zag Product and Its Friends: Part II
Gil Cohen
10:30am|Simonyi 101 and Remote Access

The well-known Zig-Zag product and related graph operators, like derandomized squaring, are fundamentally combinatorial in nature. Classical bounds on their behavior often rely on a mix of combinatorics and linear algebra. However, these traditional...

Oct
14
2024

Joint IAS/PU Arithmetic Geometry

On the converse to Eisenstein's last theorem
3:35pm|Simonyi 101 and Remote Access

Eisenstein proved, in 1852, that if a function f(z) is algebraic, then its Taylor expansion at a point has coefficients lying in some finitely-generated Z-algebra. I will explain ongoing joint work with Josh Lam which studies the extent to which the...

Oct
14
2024

Members' Colloquium

Reading Alan Turing
1:00pm|Simonyi 101 and Remote Access

I will discuss some well-known and less-known papers of Turing, exemplify the scope of deep, prescient ideas he put forth, and mention follow-up work on these by the Theoretical CS community.

 

No special background will be assumed.

Oct
14
2024

Computer Science/Discrete Mathematics Seminar I

Analytic Insights into the Zig-Zag Product and Its Friends: Part I
Gil Cohen
10:30am|Simonyi 101 and Remote Access

The well-known Zig-Zag product and related graph operators, like derandomized squaring, are fundamentally combinatorial in nature. Classical bounds on their behavior often rely on a mix of combinatorics and linear algebra. However, these traditional...

Oct
11
2024

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

Floer Homology with DG Coefficients. Applications to Cotangent Bundles
Alexandru Oancea
9:15am|Remote Access

Given a path-connected topological space X, a differential graded (DG) local system (or derived local system) is a module over the DGA of chains on the based loop space of X. I will explain how to define in the symplectically aspherical case...

Oct
10
2024

Joint PU/IAS Number Theory

Second Moment of the GL_3 Standard L-function on the Critical Line
Matthew Young
3:30pm|Simonyi 101 and Remote Access

The second and fourth moments of the Riemann zeta function have been known for about a century, but the sixth moment remains elusive.  

The sixth moment of zeta can be thought of as the second moment of a GL_3 Eisenstein series, and it is natural to...