Previous Conferences & Workshops

Dec
14
2011

Symplectic Dynamics Seminar

Actions of Higher Rank Abelian Groups: Measure Rigitidy, Arithmeticity and Topology
Anatole Katok
2:00pm|S-101
Dec
13
2011

Analysis Seminar

Two-Point Problem for the Ideal Incompressible Fluid
2:30pm|S-101

Consider the flow of ideal incompressible fluid in a bounded 2-d domain $M$ (say, $M= 3DT^2$, the 2-d torus). In the Lagrange formulation, the flow is a geodesic $f_t$ on the group $SDif f(M)$ of volume-preserving diffeomorphisms of $M$ with respect...

Dec
13
2011

Computer Science/Discrete Mathematics Seminar II

Time-Space Tradeoffs in Resolution: Superpolynomial Lower Bounds for Superlinear Space
10:30am|S-101

For modern SAT solvers based on DPLL with clause learning, the two major bottlenecks are the time and memory used by the algorithm. This raises the question of whether this memory bottleneck is inherent to Resolution based approaches, or an artifact...

Dec
12
2011

Members’ Seminar

Towards Symplectic Algebraic Topology
2:00pm|S-101

Pseudo-holomorphic curves play a fundamental role in the study of symplectic manifolds. Compactness and gluing theorems allow to extract algebra out of analysis. The focus of this talk are certain invariants which are constructed using pseudo...

Dec
12
2011

Computer Science/Discrete Mathematics Seminar I

Monotone Unification Problems
11:15am|S-101

Given two monotone polynomials f,g, their unifier is a pair of monotone polynomials u,v such that f=cu+v and g=u+cv, for some c>0. The problem I will discuss is: can we have monotone polynomials f,g which have a unifier, they can be computed by a...

Dec
09
2011

Joint IAS/Princeton University Symplectic Geometry Seminar

Bihermitian Metrics and Poisson Deformations
4:30pm|Fine Hall -- Room 322

A bihermitian metric (or generalized Kahler structure) involves a pair of complex structures and a metric compatible with both. The study of these is closely related to that of holomorphic Poisson structures on a manifold. A deformation theorem for...

Dec
08
2011

Joint IAS/Princeton University Number Theory Seminar

Weights in a Serre-Type Conjecture for U(3)
4:30pm|Fine Hall -- 214

We consider a generalization of Serre's conjecture for irreducible, conjugate self-dual Galois representations rho : G_F --> GL_3(\bar F_p), where F is an imaginary quadratic field in which p splits. We previously gave a conjecture for the possible...