Past Events
Scientific, Seminar
UBC Math Bio Seminar: Ian Wong
November 8, 2023
University of British Columbia
Animal tissues exhibit complex spatial architectures that emerge from cell-cell interactions. For instance, transitions between individual cells and multicellular groups occur widely in embryonic development, wound healing, and tumor progression...
Scientific, Seminar
UCalgary Peripatetic Seminar: Kristaps Balodis
November 8, 2023
University of Calgary
Given two isomorphic groups G and H, one may identify representations of H with representations of G along some fixed isomorphism from G to H. However, this process of identifying representations depends crucially on the isomorphism of groups one...
Scientific, Seminar
The PIMS Postdoctoral Fellow Seminar: Anastassiya Semenova
November 8, 2023
Online
The study of ocean waves, particularly surface waves, is crucial for predicting and preparing for natural disasters such as tsunamis. Although ocean waves naturally occur in three dimensions, there are instances when they can be analyzed within a two...
Scientific, Seminar
UBC Discrete Math Seminar: Anthony Lazzeroni
November 7, 2023
University of British Columbia
We introduce a new P basis for the Hopf algebra of quasisymmetric functions that refine the symmetric powersum basis. Its expansion in quasisymmetric monomial functions is given by fillings of matrices. This basis has a shuffle product, a...
Scientific, Seminar
Lethbridge Number Theory and Combinatorics Seminar: Abbas Maarefparvar
November 7, 2023
University of Lethbridge
Historically, the notion of Pólya fields dates back to some works of George Pólya and Alexander Ostrowski, in 1919, on entire functions with integer values at integers; a number field $K$ with ring of integers $\mathcal{O}_K$ is called a Pólya field...
Scientific, Seminar
SFU Discrete Math Seminar: Yifan Jing
November 7, 2023
Simon Fraser University
A central problem in additive combinatorics is to obtain a good lower bound for the size of the product set AB of two subsets A, B of a group G. In this talk, we will be focusing on the setting when G is a locally compact group, where G has a natural...
Scientific, Seminar
UVictoria Dynamics and Probability Seminar: Misha Basok
November 7, 2023
University of Victoria
In this talk I will be speaking about the dimer model sampled on a general Riemann surface. Dimer model on a graph consists of sampling a random perfect matching with the probability proportional to the product of edge weights. In the case when the...
Scientific, Seminar
UWashington Distinguished Seminar in Optimization and Data: Lin Xiao
November 6, 2023
University of Washington
We consider the problem of minimizing the average of a large number of smooth but possibly non-convex functions. For machine learning applications, the loss functions are mostly non-negative and thus can be written as the composition of the square...
Scientific, Seminar
UAlberta Math Biology Seminar: Alan Lindsay
November 6, 2023
University of Alberta
Cells must reliably coordinate responses to noisy external stimuli for proper functionality. In this talk I will present a perspective on this important problem via extreme statistics. The central premise is that when a single stochastic process...
Scientific, Seminar
L-functions in Analytic Number Theory: Vorrapan Chandee
November 6, 2023
University of Lethbridge
In this talk, I will discuss my on-going joint work with Xiannan Li on an unconditional asymptotic formula for the eighth moment of Γ1(q) L-functions, which are associated with eigenforms for the congruence subgroups Γ1(q). Similar to a large family...