Past Events
Scientific, Seminar
Algebraic Geometry Seminar: Arc spaces and equivariant cohomology II
November 9, 2009
University of British Columbia
Let G be an algebraic group acting on a smooth complex variety X. In joint work with Alan Stapledon, we present a new perspective on the G-equivariant cohomology of X, which replaces the action of G on X with the induced action of the respective arc...
Scientific, Seminar
PIMS/Math Colloquium: Issues in multivariate polynomial interpolation
November 6, 2009
University of British Columbia
While univariate polynomial interpolation has been a basic tool of scientific computing for hundreds of years, multivariate polynomial interpolation is much less understood. Already the question from which polynomial space to choose an interpolant to...
Scientific, Seminar
Algebra Topology Seminar: Nullity classes and t-structures in the derived category of a ring
November 4, 2009
University of British Columbia
In stable homotopy theory the thick subcategory theorem of Hopkins and Smith classifies thick subcategories of the triangulated category of p-torsion finite spectra. Unstably Bousfield classified nullity classes of p-torsion finite suspensions. We...
Scientific, Seminar
Probability Seminar: Speeds in (partially) asymmetric processes
November 4, 2009
University of British Columbia
Start a totally asymmetric simple exclusion process with a second class particle at 0, particles to its left and holes to its right. If Xt is the location at time t of the second class particle, then Xt / t converges a.s. to a uniform [-1,1] random...
Scientific, Seminar
DG-MP-PDE Seminar: Mass critical generalized KdV equation
November 3, 2009
University of British Columbia
I will discuss the scattering problem of mass-critical generalized KdV equation. We will see if the scattering of gKdV fails, then a minimal mass blow-up solution exist on the condition that scattering of mass-critical 1D NLS is true. We use...
Scientific, Seminar
Math Biology Seminar: Matthias Conrad
November 3, 2009
University of British Columbia
Industrial, Lunchbox Lecture
Breathing Life into Mathematical Models of Biological Systems
November 3, 2009
University of Calgary
Mathematical and computational models are becoming more prominent in biological and bioinformatics research. However, the designing, programming, testing and even utilization of computer models has not yet found the acceptance it deserves within the...
Scientific, Seminar
Algebraic Geometry Seminar: Rationally smooth Schubert varieties and B-modules
November 2, 2009
University of British Columbia
Kostant's remarkable formula (which I will recall) generalizes to smooth Schubert varieties in the flag variety G/B of an algebraic group G. On the other hand, Sara Billey noticed that rationally smooth Schubert varieties in G/B give an analogous...
Scientific, Distinguished Lecture
PIMS Distinguished Chair Lecture Series: The Language of Forms
October 30, 2009
University of Regina
Scientific, Seminar
Number Theory Seminar: An extension to the Brun-Titchmarsh Inequality
October 29, 2009
University of British Columbia