# Spring 2016 Colloquium

The colloquium meets Thursdays at 4:10 pm to 5:00 pm in 60 Evans Hall. We will have at least two talks every month. Lectures last 50 minutes and are followed by a short question period. The mathematical public is cordially invited to attend.

Maciej Zworski, Colloquium Chair

### Spring 2016

 Date Speaker Title Jan 21 Ana Caraiani, Princeton University Locally symmetric spaces and torsion classes Jan 28 Vadim Kaloshin, University of Maryland Stochastic Arnold diffusion of deterministic systems Feb 4 Scott Armstrong, Université Paris-Dauphine A quantitative theory of stochastic homogenization Feb 11 Vasudevan Srinivas, Tata Institute of Fundamental Research What are the Bloch-Beilinson Conjectures? Feb 18 Gilles Lebeau, Université de Nice Strichartz Inequalities (DiPerna Lecture) Feb 25 Alexander Polishchuk, University of Oregon Geometry of matrix factorizations Mar 3 Nike Sun, UC Berkeley The exact $k$-SAT threshold for large $k$ Mar 10 Edriss Titi, Texas A&M University and Weizmann Institute of Science Is Dispersion a Stabilizing or Destabilizing Mechanism? Mar 17 Alex Eskin, University of Chicago $SL(2,\mathbb R)$ orbit closures: theorems and counterexamples (Chern Lecture) Mar 24 Spring Break Mar 31 Greg Blekherman, Georgia Tech Geometry of Nonnegative Polynomials and Sums of Squares Apr 7 Akshay Venkatesh, Stanford University Hidden symmetries acting on the cohomology of arithmetic manifolds Apr 14 Michael Singer, University College London Monopoles, configurations and the Sen conjectures Apr 21 Sun-Yung Alice Chang, Princeton University $Q$-curvature, some survey and recent developement Apr 28 Tobias Colding, MIT Level set flow