Past Events
Scientific, Seminar
Diff. Geom, Math. Phys., PDE Seminar: Yannick Sire
February 20, 2020
University of British Columbia
Scientific, Seminar
SFU Discrete Math Seminar: Jason Schoeters
February 18, 2020
Simon Fraser University
Let G=(V,E) be an undirected graph on n vertices and λ:E →2^N a mapping that assigns to every edge a non-empty set of positive integer labels. These labels can be seen as discrete times when the edge is present. Such a labeled graph G'=(G,λ) is said...
Scientific, Seminar
Diff. Geom, Math. Phys., PDE Seminar: Ravi Shankar
February 18, 2020
University of British Columbia
Regularity has long been known to fail for minimal submanifolds of Euclidean space with large dimension, or large codimension, the latter in part because of no maximum principle for systems of PDEs. If, however, a minimal submanifold of Euclidean 2n...
Scientific, Distinguished Lecture
UBC Department of Mathematics Graduate Research Award: Thomas Hughes
February 14, 2020
University of British Columbia
Superprocesses are measure-valued Markov processes describing the evolution of populations undergoing random spatial motion and independent branching (reproduction). In this talk I will discuss the dual relationship of superprocesses with certain...
Scientific, Seminar
UBC Probability Seminar: Mark Holmes
February 12, 2020
University of British Columbia
Degenerate random environments (DRE) are a class of models of random media that arise naturally when considering random walks in non-elliptic random environments. In this talk we will motivate and introduce this class of models, discuss percolation...
Scientific, Seminar
UBC Math Biology Seminar: Fred Brauer
February 12, 2020
University of British Columbia
In vector-borne epidemic models there is often a substantial difference between the vector (usually insects) and host (usually humans) time scales. This makes it possible to view the model as a singular perturbation problem and use the quasi-steady...
Scientific, Seminar
SFU Discrete Math Seminar: Timothy Chan
February 11, 2020
Simon Fraser University
Integer programming is one of the most fundamental problems in discrete optimization. While integer programming is computationally hard in general, there exist efficient algorithms for special instances. In particular, integer programming is fixed...
Scientific, Seminar
Scientific Computation and Applied & Industrial Mathematics: Delin Chu
February 11, 2020
University of British Columbia
Over the past few decades, a lot of attention has been drawn to large-scale streaming data analysis, where researchers are faced with huge amount of high-dimensional data acquired in a stream fashion. In this case, conventional algorithms that...
Scientific, Seminar
SFU Theory Seminar Series: Nathan Klein
February 11, 2020
Simon Fraser University
Scientific, Seminar
UBC Discrete Math Seminar: Ethan White
February 11, 2020
University of British Columbia
In this second part of our exposition on the joints problem we showcase Yu and Zhao’s `Joints tightened’. This exciting application of the polynomial method has resulted in a rare occurrence in incidence geometry; the exact constant has been...