Anthony Quas
PIMS Site Director & Professor of Mathematics, University of Victoria
Scientific, Seminar
UVictoria Probability and Dynamics Seminar: Anthony Quas
I will discuss a problem that appeared on MathOverflow and its solution by the user “Fedja”. The result we will demonstrate is that if T is subset of the reals with Hausdorff dimension exceeding ½, then there is a positive probability that a standard...
Industrial, Workshop
PIMS Industry Day
M2PI matches graduate students and postdoctoral fellows with industry partners to engage in a two week long collaboration to solve an industrial mathematics challenge. M2PI participants gain valuable skills making them ready to work in non-academic...
Scientific, Workshop
The Northwest Dynamics Symposium
The Symposium is supported by the Pacific Institute for the Mathematical Sciences. As part of this year's meeting, we plan to celebrate the 65th birthday of Karl Petersen of the University of North Carolina. We gratefully acknowledge additional...
Scientific, Seminar
UVictoria Dynamics and Probability Seminar: Anthony Quas
We consider an arbitrary sequence of d*d matrices (A_n) of norm at most 1 and subject them to noiselike perturbations of size epsilon. We show that the perturbed system has simple Lyapunov spectrum (no repeated exponents) and discuss universal bounds...
Scientific, Seminar
PIMS-UVic Discrete Math Seminar: Anthony Quas
Given a collection of points S in a metric space and a probability p in (0,1), one can make a random graph by independently joining any pair of points in S that are less than 1 apart by an edge with probability p; and no edge with probability 1-p...
Industrial, Lunchbox Lecture
PIMS/Shell Lunchbox Lecture: Oceans and Multiplicative Ergodic Theorems
In many physical processes, one is interested in mixing and obstructions to mixing: warm air currents mixing with cold air; pollutant dispersal etc. Analogous questions arise in pure mathematics in dynamical systems and Markov chains. In this talk, I...
Scientific, Seminar
UBC Probability Seminar: Anthony Quas
Lyapunov exponents and Oseledets spaces are a rough analogue of eigenvalues and eigenspaces for stationary products of matrices (or operators). We are interested in the stability or otherwise of these exponents and spaces when the family of matrices...