Upcoming Events

Abstract: I will present a completion theory for hyperbolic distance data at the interface of matrix analysis, graph theory, and hyperbolic geometry, drawing particularly on representations of chordal graphs. In analogy with the positive semidefinite...

Abstract: A multiflow in a planar graph is uncrossed if its support paths do not cross in the plane. Recently such flows have played a role in approximation algorithms for maximum disjoint paths in "fully-planar" instances, where the combined supply...

We will talk about the impact of LLM's and AI from a staff perspective. We will cover some of the terminology and how it maps on to policies and practices at an institution like UBC (using UBC an example, not everything will be UBC specific). We will...

In this talk, Grigory Solomadin will present two results concerning topological homotopy algebras over unital, colored, nonsymmetric operads in sets. The first provides a cellular approximation that preserves the underlying collection, while the...

The most intensely studied models of quantum gravity converge to metrics of negative curvature in the semiclassical limit. However, Einstein’s theory of gravity posits a positive curvature metric, and the gravity in our universe is believed to be of...

Abstract: The assignment problem pairs workers with tasks at the lowest total cost. But costs are often measured, estimated, and rounded. How much error can we tolerate? Classical sensitivity analysis furnishes an answer, but only after the fact. We...

The mathematical modelling of MS so far has focused on a few aspects of the disease, but an overall modelling framework is missing. Here we propose a paradigm for the mathematical modelling of MS. Based on biological principles we propose s sequence...