Past Events
Scientific, Seminar
Lethbridge Number Theory and Combinatorics Seminar: Do Nhat Tan Vo
November 19, 2025
University of Lethbridge
Fix a positive integer $X$ and multi-sets of complex numbers $\mathcal{I}$ and $\mathcal{J}$. We study the shifted convolution sum \[ D_{\mathcal{I},\mathcal{J}}(X,1) = \sum_{n\leq X} \tau_{\mathcal{I}}(n)\tau_{\mathcal{J}}(n+1), \] where $\tau_{...
Scientific, Seminar
The PIMS Postdoctoral Fellow Seminar: Antoine Leudière
November 19, 2025
Online
In number theory, we often consider a generalization of integers called algebraic numbers. Their definition is rather elementary, but their classification is nothing but. Algebraic numbers come in families, and we can attach each family an invariant...
Scientific, Seminar
PIMS-CORDS SFU Operations Research Seminar: Peter Zhang
November 18, 2025
Simon Fraser University
Applying robust optimization often requires selecting an appropriate uncertainty set both in shape and size, a choice that directly affects the trade-off between average-case and worst-case performances. In practice, this calibration is usually done...
Scientific, Seminar
UVictoria Probability and Dynamics Seminar: Caelan Atamanchuk
November 18, 2025
Online
Given two trees, what is the size and structure of their largest common shared subtree? This question has been a growing topic of interest in the probability/combinatorics community in recent years, with the problem having been discussed for a few...
Scientific, Seminar
UAlberta Math Biology Seminar: Thomas Hillen
November 17, 2025
University of Alberta
Multiple Sclerosis (MS) is an autoimmune diseases that affects the central nervous system (CNS). It can lead to inflammation, neurodegeneration and physical or cognitive disability. To date, no cure for MS exists, but medications are available to...
Scientific, Seminar
UBC Algebra and Algebraic Geometry Seminar: Zinovy Reichstein
November 17, 2025
University of British Columbia
The Cremona dimension of a finite group G is the minimal dimension of a rationally connected variety which admits a faithful action of G. In this talk, based on joint work with Giulio Bresciani and Angelo Vistoli, I will discuss new lower bounds on...
Scientific, Seminar
SFU MOCAD Seminar: Nathan Kutz
November 14, 2025
Simon Fraser University
Sensing is a universal task in science and engineering. Downstream tasks from sensing include learning dynamical models, inferring full state estimates of a system (system identification), control decisions, and forecasting. These tasks are...
Scientific, Seminar
UCalgary Algebra and Number Theory Seminar: Tangli Ge
November 13, 2025
University of Calgary
I will talk about a unification of two bounded height results around abelian varieties. The first is Silverman’s specialization theorem, which states for an abelian scheme A/C with no fixed part over a curve C, that the set of points on C where the...
Scientific, Seminar
SFU NTAG Seminar: Joshua Turner
November 13, 2025
Simon Fraser University
We will discuss a class of ideals in a polynomial ring studied by Mark Haiman in his work on the Hilbert scheme of points and discuss how they are related to homology of affine Springer fibers, Khovanov-Rozansky homology of links, and to the ORS...
Scientific, Seminar
UW AGD Seminar: Elena Kim
November 12, 2025
University of Washington
A central question in quantum chaos is how classical chaotic dynamics influence quantum behavior. On compact Riemannian manifolds, pure quantum states correspond to Laplacian eigenfunctions. The quantum unique ergodicity (QUE) conjecture of Rudnick...