Past Events

For my work supporting Bifrost, a programming environment built for visual effects artists, I am seeking a good “default” preconditioner for solving linear systems or accelerating nonlinear solvers in problems arising in physics simulation and...

Previously, in this seminar series, we have heard about explicit bounds on the sum of values of the von Mangoldt function Lambda(n) (for n x). The point of lift-off for bounding this sum is the explicit formula, which pulls the zeros of the Riemann...

Standard Young tableaux are fundamental in combinatorics, representation theory, and geometry. In this talk, we will define these objects and discuss some of their remarkable properties. In particular, we will discuss the connection between the major...

Geoff plans to talk about the transition from proliferation to differentiation, which is work following up on the paper that his group recently published in Current Biology. See: https://phys.org/news/2018-08-secrets.html

Algebraic K-theory is an invariant defined on categories that records how object in the category are related by exact sequences --- it is a homotopical version of the classical Euler characteristic. However, there are many categories of interest that...

Sub-Gaussian heat kernel estimates are typical of fractal graphs. We show that sub-Gaussian estimates on graphs follow from a Poincaré inequality, capacity upper bound, and a slow volume growth condition. An important feature of this work is that we...

In this work we examine notions of alignment with respect to a generalized form of Holder's inequality.

Schubert calculus began in the 1880s when Hermann Schubert began asking enumerative questions in geometry, such as how many lines in space are incident to four given lines. Efforts to build a rigorous foundation for these questions led to the...

In this talk, I will present an $L^\infty$-estimate for non-local parabolic SPDEs with measurable jumping kernels, using an improved version of stochastic De Giorgi iteration. Then a priori Holder estimate will be given for solutions of these SPDEs...

Note: This is a work-in-progress seminar talk