Past Events
Scientific, Seminar
UVic Statistical Data Science Seminar: Leilei Zeng
November 3, 2023
University of Victoria
In life history studies one often encounters situations where individuals in a population are eligible to enroll only if the response time does not exceed an associated censoring time, which leads to the so called left truncated lifetime data. While...
Scientific, Seminar
05C50 Online Seminar: Sooyeong Kim
November 3, 2023
Online
Kemeny's constant, a fundamental parameter in the theory of Markov chains, has recently received significant attention within the graph theory community. Originally defined for a discrete, finite, time-homogeneous, and irreducible Markov chain based...
Scientific, Seminar
SFU Number Theory and Algebraic Geometry Seminar: Andrea Petracci
November 2, 2023
Simon Fraser University
Fano varieties are projective algebraic variety with “positive curvature”. Recently, using the notion of K-stability which originates in differential geometry, projective moduli spaces for Fano varieties have been constructed. In this talk I will...
Scientific, Colloquia
PIMS-UWashington Mathematics Colloquium: Alex Kontorovich
November 2, 2023
University of Washington
Recent decades have seen a lot of progress in the "orbital circle method" attacking classical problems from dynamics, geometry, and number theory under the umbrella of "thin groups". There was always a danger that the circle method was too crude a...
Scientific, Seminar
PIMS-CORDS SFU Operations Research Seminar: Julia Yan
November 2, 2023
Simon Fraser University
Shared rides, which pool individual riders into a single vehicle, are essential for mitigating congestion and promoting more sustainable urban transportation. However, major ridesharing platforms have long struggled to maintain a healthy and...
Scientific, Seminar
UBC Number Theory Seminar: Greg Martin
November 2, 2023
University of British Columbia
For every positive integer n, the quotient ring Z/nZ is the natural ring whose additive group is cyclic. The "multiplicative group modulo n" is the group of invertible elements of this ring, with the multiplication operation. As it turns out, many...
Scientific, Seminar
PIMS-UVic Discrete Math Seminar: Kenneth Moore
November 2, 2023
University of Victoria
A broad class of problems in extremal geometry can be characterized as follows. Fix a positive integer k and a property of k-tuples of points in R^2. The problem is then to determine how many k-tuples in an n-point set in R^2 can have the chosen...
Scientific, Seminar
URegina Topology & Geometry Seminar: Elliott Cheung
November 1, 2023
University of Regina
We will describe a discretization of Chern-Simons theory using Whitney forms. Derived moduli spaces are often described using L-infinity algebras and it is interesting to explore how a derived moduli space varies as we modify the 'governing L...
Scientific, Seminar
UBC Math Bio Seminar: Avner Friedman
November 1, 2023
University of British Columbia
Mathematical biomedicine is an area of research where questions that arise in medicine are addressed by mathematical methods. Each such question needs first to be represented by a network with nodes that includes the biological entities that will be...
Scientific, Seminar
UCalgary Peripatetic Seminar: Blake Whiting
November 1, 2023
University of Calgary
The Eilenberg-Zilber (EZ) theorem is a powerful tool in homological algebra and algebraic topology, being a key ingredient in the Kunneth theorem. It also serves as the basis for defining the cup product, which in turn establishes cohomology as a...