Past Events
Scientific, Seminar
UVictoria Dynamics and Probability Seminar: Yin-Ting Liao
February 14, 2023
University of Victoria
Random projections of high-dimensional probability measures have gained much attention in asymptotic convex geometry and high-dimensional statistics. While fluctuations at the level of the central limit theorem have been classically studied, only...
Scientific, Seminar
URegina Topology Seminar: Arnaud Ngopnang Ngompe
February 14, 2023
University of Regina
In this talk, we give a description of finite-dimensional commutative Frobenius algebras and we recall the description of 2-dimensional TQFTs. We show that these two structures are equivalent to each other.
Scientific, Seminar
UBC SCAIM Seminar: Anthony Wachs
February 14, 2023
University of British Columbia
I present recent advances in the design of models of hydrodynamic force and torque exerted on monodisperse spheres in a statistically homogeneous random array at Reynolds number 0.01 ≤ Re ≤ 150 and solid volume fraction 0.02 ≤ φ ≤ 40. All models take...
Scientific, Seminar
UAlberta Math Biology Seminar: Yonatan Ashenafi
February 13, 2023
University of Alberta
Functions of microorganisms like looking for nutrition and biological processes such as infection and reproduction are possible due to microfluidic motion. Developments over the past two decades in tracking and manipulation at the microfluidic level...
Scientific, Seminar
ULethbridge Number Theory and Combinatorics Seminar: Kelly Emmrich
February 13, 2023
Online
Let K/k be a finite Galois extension. We define a principal version of the Chebotarev density theorem which represents the density of prime ideals of k that factor into a product of principal prime ideals in K. We find explicit equations to express...
Scientific, Seminar
The PIMS Postdoctoral Fellow Seminar: Konstantinos Mamis
February 12, 2023
Online
Scientific, Seminar
05C50 Online Seminar: Mahsa Shirazi
February 10, 2023
University of Manitoba
An interesting question in spectral graph theory is about the structure of the eigenvectors of matrices associated with graphs. A graph is weakly Hadamard diagonalizable (WHD) if its Laplacian matrix L can be diagonalized with a weakly Hadamard...
Scientific, Seminar
SFU Number Theory and Algebraic Geometry Seminar: Eva-Marie Hainzl
February 9, 2023
Simon Fraser University
Decompositions of combinatorial structures translate very often to functional equations with positive coefficients for their generating functions. A theorem by Bender says that if the generating function is univariate and the equation not linear, the...
Scientific, Seminar
PIMS- UVic Discrete Math Seminar: Jesse Campion Loth
February 9, 2023
University of Victoria
Products of permutations are used to model problems in fields ranging from representation theory and algebraic geometry to topological graph theory. I will show how probability can be used to study such problems, with a focus on how graphs may be...
Scientific, Seminar
SFU Discrete Math Seminar: Curtis Bright
February 8, 2023
Simon Fraser University
I will describe a new approach for exhaustively generating combinatorial objects by combining a satisfiability (SAT) solver with an isomorph-free exhaustive generation method such as orderly generation. The SAT solver is able to limit the search to...