HARVARD-MIT-BU-BRANDEIS-NORTHEASTERN
April 1, 2021 4:30 pmMany models in equilibrium statistical physics produce random fractal curves “at criticality.” I will discuss one particular model, the loop-erased random walk, which is closely related to uniform spanning trees...
Read more
COLLOQUIUMS
March 22, 2021 3:00 pmTitle: Metric representations: Algorithms and Geometry Abstract: Given a data set or a set of distances amongst data points, determining what combinatorial representation is most “consistent” with the input distances or...
Read more
COLLOQUIUMS
March 16, 2021 3:00 pmTitle: Recent progress on random field Ising model Abstract: Random field Ising model is a canonical example to study the effect of disorder on long range order. In 70's, Imry-Ma...
Read more
COLLOQUIUMS
March 8, 2021 3:00 pmTitle: Topological Recursion and Enumerative Geometry Abstract: Given a holomorphic curve in the complex 2-plane together with a suitably normalized symmetric meromorphic bilinear differential, the Chekhov-Eynard-Orantin Topological Recursion defines an infinite sequence of symmetric...
Read more
COLLOQUIUMS
March 1, 2021 3:00 pmTitle: Robustness Meets Algorithms Abstract: Starting from the seminal works of Tukey (1960) and Huber (1964), the field of robust statistics asks: Are there estimators that probably work in the...
Read more
COLLOQUIUMS
February 23, 2021 3:00 pmTitle: Replica Symmetry Breaking for Random Regular NAESAT Abstract: Ideas from physics have predicted a number of important properties of random constraint satisfaction problems such as the satisfiability threshold and...
Read more
HARVARD-MIT-BU-BRANDEIS-NORTHEASTERN
November 12, 2020 4:30 pmA multidimensional polynomial system is said to be sparse when the monomials present in the polynomials are fixed a priori. I will present classic and recent upper and lower bounds...
Read more
COLLOQUIUMS
November 5, 2020 4:30 pmLacunary trigonometric sums are known to exhibit several properties that are typical of sums of iid random variables such as the central limit theorem, established by Salem and Zygmund, and...
Read more
HARVARD-MIT-BU-BRANDEIS-NORTHEASTERN
October 22, 2020 4:30 pmThere are many natural sequences of moduli spaces in algebraic geometry whose homology approaches a "limit", despite the fact that the spaces themselves have growing dimension. If these moduli spaces...
Read more
HARVARD-MIT-BU-BRANDEIS-NORTHEASTERN
February 27, 2020 4:30 pmThe groups of homeomorphisms or diffeomorphisms of a manifold have many striking parallels with finite dimensional Lie groups. In this talk, I'll describe some of these, and explain new work,...
Read more