Past Events

Case of the Gauss map

I will discuss how cartesian restriction categories can be reasoned about using string diagrams for monoidal categories, including how this extends to regular restriction categories. Specifically, we will see that every cartesian bicategory of...

I will present some of the mathematics we have been using at the Institute for Health Metrics and Evaluation (IHME) in the UW School of Medicine to project the global course of the COVID outbreak and the demands it may put on local health systems...

In the past four years, a number of immersed curve invariants have emerged in low-dimensional topology. Hanselman, Rasmussen and Watson used their immersed curve invariant for 3-manifolds with torus boundary to give an elegant proof of the fact that...

Narnaviruses have been described as positive-sense RNA viruses with a remarkably simple genome of ∼ 3 kb, encoding only a highly conserved RNA-dependent RNA polymerase (RdRp). Many narnaviruses, however, are ‘ambigrammatic’ and harbor an additional...

There will be a pre-talk from 1:20-1:50 Utah time to introduce symbolic dynamics and linear block growth. Pre-talk slides

In this talk, I report on recent work with Nathan Ng. Assuming a conjectural formula for a certain family of additive divisor sums, we prove an asymptotic formula for mean values of long Dirichlet polynomials with higher order shifted divisor...

TBA

In this talk I will present a "dynamical paradigm" for modeling networks of interacting genes and proteins that regulate every aspect of cell physiology. The paradigm is based on dynamical systems theory of nonlinear ODEs, especially one- and two...

Compressive sensing has generated tremendous amounts of interest since first being proposed by Emmanuel Candes, David Donoho, Terry Tao, and others a bit more than a decade ago. This mathematical framework has its origins in (i) the observation that...