Previous Conferences & Workshops

Nov
01
2011

Analysis Seminar

The Defocusing Cubic Nonlinear Wave Equation in the Energy-Supercritical Regime
3:15pm|S-101

In this talk, we will present some recent results in the study of the nonlinear wave equation with cubic defocusing nonlinearity, describing the completion of a program to establish global well-posedness and scattering in the energy-supercritical...

Nov
01
2011

Hermann Weyl Lectures

Chow Rings, Decomposition of the Diagonal and the Topology of Families
2:00pm|S-101

Summary: These lectures are devoted to the interplay between cohomology and Chow groups of a complex algebraic variety, and also to the consequences, on the topology of a family of smooth projective varieties, of statements concerning Chow groups of...

Oct
31
2011

Computer Science/Discrete Mathematics Seminar I

Mantel's Theorem for Random Graphs
Jeff Kahn
11:15am|S-101

For a graph $G$, let $t(G)$ (resp. $b(G)$) denote the maximum size of a triangle-free (resp. bipartite) subgraph of $G$. Of course $t(G) \geq b(G)$ for any $G$, and a classic result of Mantel from 1907 (the first case of Turan’s Theorem) says $t(K_n...

Oct
28
2011

Joint IAS/Princeton University Symplectic Geometry Seminar

Stochastic Twist Maps and Symplectic Diffusions
4:15pm|S-101

I discuss two examples of random symplectic maps in this talk. As the first example consider a stochastic twist map that is defined to be a stationary ergodic twist map on a planar strip. As a natural question, I discuss the fixed point of such maps...

Oct
28
2011

Geometry Seminar

C^0 Limits of Hamiltonian Paths and Spectral Invariants
1:30pm|S-101

After reviewing spectral invariants, I will write down an estimate, which under certain assumptions, relates the spectral invariants of a Hamiltonian to the C^0-distance of its flow from the identity. I will also show that, unlike the Hofer norm...

Oct
27
2011

Joint IAS/Princeton University Number Theory Seminar

A New Formulation of the Gross-Zagier Formula
4:30pm|S-101

In this talk, I will present a formulation of the Gross-Zagier formula over Shimura curves using automorphic representations with algebraic coefficients. It is a joint work with Shou-wu Zhang and Wei Zhang.