Past Events
Scientific, Seminar
UVictoria Probability and Dynamics Seminar: Qiang Wu
October 9, 2024
Online
Spin glasses are disordered statistical physics system with both ferromagnetic and anti-ferromagnetic spin interactions. The Gibbs measure belongs to the exponential family with parameters, such as inverse temperature $\beta>0$ and external field $h...
Scientific, Seminar
UBC Math Bio Seminar: George Berry
October 9, 2024
University of British Columbia
The Moran process models the evolutionary dynamics between two competing types in a population, traditionally assuming a fixed population size. We investigate an extension to this process which adds ecological aspects through variable population...
Scientific, Seminar
The PIMS Postdoctoral Fellow Seminar: Alice Lacaze-Masmonteil
October 9, 2024
Online
In this talk, I will discuss recent progress on the directed Oberwolfach problem. A directed variant of the famous Oberwolfach problem, the directed Oberwolfach problem considers the fol- lowing scenario. Given m people and t round tables of size m1...
Scientific, Seminar
UBC Discrete Math Seminar: Shamil Asgarli
October 8, 2024
Online
The chromatic polynomial of a graph G counts the number of proper k-colorings of G. In 1995, Stanley extended this concept to define the chromatic symmetric function of a graph, which lives in the ring Sym of all symmetric functions. Building on this...
Scientific, Seminar
L-functions in Analytic Number Theory: Christine K. Chang
October 8, 2024
Online
We will present a matching upper and lower bound for the right tail probability of the maximum of a random model of the Riemann zeta function over short intervals. In particular, we show that the right tail interpolates between that of log-correlated...
Scientific, Seminar
Lethbridge Number Theory and Combinatorics Seminar: Emily Quesada Herrera
October 7, 2024
University of Lethbridge
In 1973, assuming the Riemann hypothesis (RH), Montgomery studied the vertical distribution of zeta zeros, and conjectured that they behave like the eigenvalues of some random matrices. We will discuss some models for zeta zeros � starting from the...
Scientific, Seminar
UBC Algebra and Algebraic Geometry: Sebastian Gant
October 7, 2024
University of British Columbia
We study the question of when a generic stably free module splits off a free summand of a given rank. This question has the following geometric interpretation due to M. Raynaud. Let V(r,n) denote the Stiefel variety GL(n)/GL(n-r) over a field k...
Scientific, Seminar
UAlberta Math Biology Seminar: Bo Zhang
October 4, 2024
University of Alberta
Understanding mechanisms of coexistence is a central topic in ecology. Mathematical analysis of models of competition between two identical species moving at different rates of symmetric diffusion in heterogeneous environments show that the slower...
Scientific, Seminar
UCalgary Peripatetic Seminar: Taha Hedayat
October 4, 2024
University of Calgary
In this talk we will cover the mathematics behind a security system that is thought to be secure against quantum computer hacking; the Supersingular Ell Isogeny Cryptosystem. Specifically the Supersingular Ell Isogeny Graph. This abstract object is...
Scientific, Seminar
UBC DG MP PDE Seminar: Federico Trinca
October 3, 2024
University of British Columbia
Complex submanifolds of Kähler manifolds are prototypical examples of stable, minimal submanifolds of higher codimension. In 1990, Yau asked whether it was possible to classify stable minimal spheres in hyperkähler 4-manifolds, proposing that all...