Past Events

A d-polytope is called (d−i)-simplicial if all of its (d−i)-faces are simplices. It is i-simple if every (d−i−1)-face belongs to exactly i+1 facets. A few low-dimensional examples of (d−i)-simplicial i-simple polytopes arising from regular polytopes...

Science Rendezvous is a FREE festival that takes science, technology, engineering, art, and math (STEAM) research and innovation out of the lab and onto the street. See the UBC Science Rendezvous Page for activities taking place at UBC.

A harmonic function of one variable is a linear function. A harmonic function of two variables is the real or imaginary part of an analytic function. A harmonic function of n variables is a function u satisfying \frac{\partial^{2}u}{\partial x_{1}^{2...

Local Arthur packets are sets of representations of p-adic groups that help us realize important classes of automorphic forms. They have geometric analogues, called ABV-packets. This was first proposed for p-adic groups by David Vogan following his...

In this talk, we study the performance of some preconditioners for accelerating the convergence of Krylov subspace methods for solving linear systems of equations with a block three-by-three structure. A brief discussion is included regarding how...

In this talk, we study the performance of some preconditioners for accelerating the convergence of Krylov subspace methods for solving linear systems of equations with a block three-by-three structure. A brief discussion is included regarding how...

We study the behavior of h-vectors associated to matroid complexes under weak maps, or inclusions of matroid polytopes. Specifically, we show that the h-vector of the order complex of the lattice of flats of a matroid is component-wise non-increasing...

In this talk I will describe some properties of Meinhardt's model of sidebranching. This is a four-species reaction-diffusion model dating from 1976 describing the interaction of four fields, the concentrations of an activator, an inhibitor, the...

The theory of combinatorial limits, which provides analytic tools to represent and study large discrete structures, resulted in new views on a wide range of topics in mathematics and computer science and also opened new connections between...