Past Events

Fred Brauer has agreed to give this informal survey talk about TB modeling. There will be a reading list advertised later on for students who would like to read up about these interesting problems.This lecture on disease modeling fits into a theme...

Atmospheric dispersion refers to the transport of contaminants in the atmosphere under the influence of advection (due to the wind) and turbulent diffusion. When the contaminant is emitted from a stationary point source, then the governing advection...

The project is a joint activity of six mathematical sciences research institutes, four in the US and two in Canada, namely IPAM (Institute for Pure and Applied Mathematics), NIMBios (National Institute for Mathematical and Biological Synthesis)...

To any polynomial over a perfect field of positive characteristic, one may associate an invariant called the F-pure threshold. This invariant, defined using the Frobenius morphism on the ambient space, can be thought of as a positive characteristic...

The concept of entropy was introduced into ergodic theory by Kolmogorov in the late 1950s. It can be viewed as a measure of the average information gained in learning that the orbit of an unidentified point visits a certain sequence of sets in a...

Taking advantage of the BIRS workshop, Topological methods in toric geometry, symplectic geometry and combinatorics (10w5026), from Nov 7-12, the topologists organized a follow-up meeting, the Alberta Topology Seminar, on Nov 12. The speakers...

The Navier–Stokes-alpha-beta equation regularizes the Navier–Stokes equation by the addition of dispersive and dissipative terms. The dispersive term is proportional to the divergence of the corotational rate of the symmetric part of the velocity...

To each finite group G one associates an algebraic invariant rk(G), called the rank of G, and a topological invariant hrk(G), called the homotopy rank of G. The number hrk(G) is defined in terms of free G-actions on products of spheres. In this talk...

Let $A$ be an $n\times n$ matrix with $n$ distinct eigenvalues. Its open $\epsilon$-pseudospectrum is the set of points in the complex plane which are eigenvalues of a matrix $B$ with $||A-B|| \epsilon$. For sufficiently small $\epsilon$ the...