University of Alberta

Given a Calabi-Yau complete intersection in a toric Fano variety, there are various ways to construct the mirror. Sometimes these mirrors are isomorphic and sometimes they are not. These distinct 'double' mirrors should be equivalent in some way if...

The Lie Theory Workshop series of weekend conferences has been meeting several times a year since 1990. Most years the NSF supports graduate students and postdoctoral participants, and the institution at which the workshop takes place also provides...

This talk is about certain dynamical equilibria of curves related to towed cables, sedimenting filaments, and other marine, microfluidic, or industrial structures. I will present analytical results detailing the configurations of a translating and...

Separating the configuration and velocity measurements was pioneered by Euler in 1750s in his study of the dynamics of rigid body and fluid. This use of ‘nonmaterial velocity’ influenced greatly the development of mechanics. In 1904, Hamel extended...

Dr Frohlich is Associate Director of the Institute for Geophysics and Senior Research Scientist in the Jackson School of Geosciences. Following his talk there will be an open panel discussion. Confirmed panelists will include Mirko van der Baan and...

We present a technique called M-adaptation, based on the mimetic finite difference method, for minimizing numerical dispersion error in edge discretizations of the time-domain vector wave equation on square meshes. The temporal discretization uses...

I will discuss the following question: Is any smooth or analytic orientation preserving diffeomorphism of the circle $f$ with an irrational rotation number $\alpha$ almost reducible in the sense that there exists a sequence of smooth or analytic...

In this talk, I will present the chaotic phenomenon of a dynamical system with positive entropy. It is shown that a dynamical system has positive entropy if and only if it has a weak horseshoe. Particularly, I will show that a Lorentz attractor has a...