Past Events
Scientific, Seminar
DG-MP-PDE Seminar: On an isoperimetric inequality for a Schroedinger operator depending on the curvature of a loop
September 29, 2009
University of British Columbia
Let \gamma be a smooth closed curve of length 2\pi in R^3, and let \kappa(s) be its curvature regarded as a function of arc length s. We associate with this curve the one-dimensional Schroedinger operator H_\gamma = -d^2/ds^2 + \kappa^2(s) acting on...
Scientific, Seminar
Discrete Math Seminar - Forbidden Configurations: Critical Substructures
September 29, 2009
University of British Columbia
Let F be a kxl (0,1)-matrix. We say that a (0,1)-matrix A has F as a `configuration' if some row and column permutation of F is a submatrix of A. We are interested in `simple' matrices, namely (0,1)-matrices with no repeated columns. If A is a simple...
Scientific, Conference
2009 Pacific Northwest Numerical Analysis Seminar
September 26, 2009
University of British Columbia
The Twenty Second Annual Pacific Northwest Numerical Analysis Seminar will be hosted by the The University of British Columbia. If you plan to attend, please register below in advance so that we can order refreshments accordingly. Registration fees...
Scientific, Seminar
PIMS-CSC Seminar: Numerical Construction of Multiresolutions from Subdivisions
September 25, 2009
Simon Fraser University
Mesh subdivisions are used frequently to build objects and characters for computer animation, computer games, and industrial computer-aided geometric design. The design process starts with a coarse-mesh model of an object, and the mesh is refined and...
Scientific, Seminar
Topology Seminar: Bilipschitz equivalence is not equivalent to quasi-isometric equivalence for finitely generated group
September 25, 2009
University of British Columbia
We give an example of two finitely generated quasi-isometric groups that are not bilipschitz equivalent. The proof involves structure of quasi-isometries from rigidity theorems, analysis of bilipschitz maps of the n-adics and uniformly finite...
Educational
Teacher Training workshop
September 25, 2009
University of British Columbia
Review of assessment and placement of students at the Haahuupayak School, Port Alberni. Working with teachers and giving advice about the Math program. Collecting feedback from teachers about student performance.
Scientific, Seminar
New Trends and Developments in Variational Analysis
September 24, 2009
University of Victoria
In this talk we discuss some new trends and developments in variational analysis and its numerous applications in both finite-dimensional and infinite-dimensional spaces, emphasizing those to optimization and equilibrium problems, robust stability...
Scientific, Seminar
Topology Seminar: Hilbert Uniformization II: homology of moduli spaces
September 23, 2009
University of British Columbia
The simplicial complex of talk I consists of pieces of the classifying spaces of symmetric groups. We use this to investigate the homology of moduli spaces. At the end, we discuss generalizations, where the symmetric groups are replaced by other...
Scientific, Seminar
Probability Seminar: Particle Approximation of the Wasserstein Diffusion
September 23, 2009
University of British Columbia
In this talk a finite dimensional approximation of the recently constructed Wasserstein diffusion on the unit interval is presented. More precisely, the empirical measure process associated to a system of interacting, two-sided Bessel processes with...
Scientific, Conference
Workshop on Discovery and Experimentation in Number Theory 2009
September 22–26, 2009
Simon Fraser University
The workshop takes place at two sites: The Fields Institute in Toronto and The IRMACS Centre in Vancouver. While participants are welcome at either site, we anticipate that most participants will choose the closer or easier site. We will share (by...