Previous Conferences & Workshops

Jan
29
2009

Joint IAS/Princeton University Number Theory Seminar

The Subconvexity Problem for GL_2
P. Michel
4:30pm|S-101

The subconvexity problem consists in providing non-trivial upper bounds for central values of $L$-function. In recent years, this has been recognized as a central point to many arithmetic problems which could be related to the analytic theory of...

Jan
28
2009

Mathematical Physics Seminar

Large Deviations of the Current in Non-Equilibrium Systems
Thierry Bodineau
11:15am|S-101

Using the hydrodynamic limit theory, we will review the large deviations of the heat current through a diffusive system maintained off equilibrium by two heat baths at unequal temperatures. We will also discuss a toy model for dissipative dynamics...

Jan
27
2009

Computer Science/Discrete Mathematics Seminar II

The XOR Lemma -- A Quarter Century of Proofs
10:30am|S-101

Amplifying the difficulty of a somewhat hard function is a central technique in complexity, cryptography and pseudorandomness. By far the most common method of amplification is by repetition - asking to compute the original function in many...

Jan
26
2009

Members’ Seminar

Hidden Structures in the Family of Convex Functions in R^n and the New Duality Transform
2:00pm|S-101

(Joint work with Shiri Artstein-Avidan). We discuss in the talk an unexpected observation that very minimal basic properties essentially uniquely define some classical transforms which traditionally are defined in a concrete and quite involved form...

Jan
26
2009

Computer Science/Discrete Mathematics Seminar I

The Limits of Advice
11:15am|S-101

Since the work of Karp and Lipton in the 1980s, complexity theorists know and love the /poly operator, which adds a polynomial-sized advice string to any complexity class. But it's interesting to consider much more general kinds of "advice objects"...

Jan
25
2009

Geometry and Materials Seminar

Liquid Crystals, Minimal Surfaces, and Elliptic Functions
Randall Kamien
3:30pm|S-101

Liquid crystals form layered structures, known as smectics. Modeling these structures as minimal surfaces gives a class of trial solutions from which we can estimate ground state energetics. In order to control the boundary conditions, or topology...

Jan
23
2009

Special Geometric PDE Seminar

Local Polyhomogeneity and Unique Continuation for Einstein Metrics
Olivier Biquard
11:00am|S-101

I shall discuss two related local regularity results for asymptotically hyperbolic (or complex hyperbolic) Einstein metrics, near a point at infinity: local polyhomogeneity and unique continuation.

Jan
22
2009

Mini-Course in Geometric PDE

Issues in Homogenization for Problems with Nondivergence Structure
2:00pm|S-101

When we look at a differential equation in a very irregular media (composite material, mixed solutions, etc.) from very close, we may see a very complicated problem. However, if we look from far away we may not see the details and the problem may...