Past Events

Infectious disease transmission models are used to inform public health policies and gain a better understanding of disease dynamics. For them to accomplish these goals effectively it is important that models accurately represent the mechanisms that...

I will discuss the following question independently posed by Clark and Saltman around 2007: Given a central simple algebra A over a field K, is there a a genus 1 curve X over K such that A is split by the function field K(X)? Federico Scavia and I...

I will use the remarkable Stirling’s formula for N! to introduce the asymptotic analysis of Riemann-Hilbert problems. Then I will describe the kinetic theory of soliton gases. To accomplish this, I will explain by example some integrable nonlinear...

We analyze how strategic customers and providers respond to delay information in a matching system. Using Markovian queueing models and equilibrium analysis, we evaluate three disclosure policies (no information, binary, and occupancy) and identify...

The sum-rank metric is a generalization of the well-known Hamming and rank metrics. In this talk, we introduce two new bounds on the maximal cardinality of the sum-rank-metric code with a given minimum distance. One of the bounds exploits a...

I will present some recent progress in the study of Hilbert schemes Hilb ⁡ d ( A n ) of d points in affine space. Specifically, I will describe some recent examples of elementary components of Hilbert schemes of points. One infinite family of these...

How does one describe the structure of a graph? What is a good way to measure how complicated a given graph is? Tree decompositions are a powerful tool in structural graph theory, designed to address these questions. To obtain a tree decomposition of...

Given a one-parameter degenerating family of rational maps on the projective line, it is possible to construct a non-archimedean limit which captures how this family degenerates. Recently, Luo used ultrafilters to construct limits for an arbitrary...

In recent years, harmonic analysts and fractal geometers have become increasingly interested in Ramsey-theoretic problems for subsets of Rn. Many of these were inspired by discrete analogues. Over the past 20 years, classical theorems from discrete...

Bundle gerbes on a manifold M provide geometric realizations of degree 3 cohomology classes of M. The space of infinitesimal symmetries of a bundle gerbe naturally carries the structure of a Lie 2-algebra, a deformation of the notion of Lie algebra...