Past Events
Scientific, Seminar
UBC Harmonic Analysis and Fractal Geometry: Junjie Zhu
March 18, 2024
University of British Columbia
The notions of Hausdorff and Fourier dimensions are ubiquitous in harmonic analysis and geometric measure theory. It is known that any hypersurface in ℝd+1 has Hausdorff dimension d. However, the Fourier dimension depends on the finer geometric...
Scientific, Seminar
L-functions in Analytic Number Theory: Quanli Shen
March 18, 2024
University of Lethbridge
I will discuss the fourth moment of quadratic Dirichlet L-functions where we prove an asymptotic formula with four main terms unconditionally. Previously, the asymptotic formula was established with the leading main term under generalized Riemann...
Scientific, Workshop
POSTPONED: Land and Sea: Mathematics of the Climate Crisis-A Global Conversation
March 18, 2024
Online
POSTPONED: Unfortunately this event has been postponed at short notice. It will no longer take place on March 18th, but will be rescheduled for later in the summer About Land and Sea: Mathematics of the Climate Crisis-A Global Conversation is the...
Scientific, Colloquia
PIMS/UBC Mathematical Sciences Early Career Award Colloquium: Trevor Campbell
March 15, 2024
University of British Columbia
Since shortly after the popularization of stochastic gradient optimization methods in machine learning---which now scale model training to billions of examples and beyond---researchers have been trying to use the same basic data subsampling...
Scientific, Seminar
UVic-PIMS Data Science Seminar: Lin Zhang
March 15, 2024
University of Victoria
Single-cell omics data play a pivotal role in identifying cell-to-cell heterogeneity, understanding cell differentiation, unveiling cell population structures, and ultimately deciphering disease pathogenesis. Due to inherent high-dimensionality...
Scientific, Seminar
SFU Number Theory and Algebraic Geometry Seminar: Farbod Shokrieh
March 14, 2024
Simon Fraser University
I will describe some connections between arithmetic geometry of abelian varieties, non-archimedean/tropical geometry, and combinatorics. For a principally polarized abelian variety, we show an identity relating the Faltings height and the Néron--Tate...
Scientific, Seminar
UBC DG MP PDE Seminar: Evan Miller
March 14, 2024
University of British Columbia
In this talk, I will introduce the restricted Euler and hypodissipative Navier-Stokes equations. These equations are analogous to the Euler and hypodissipative Navier-Stokes equations, respectively, but with the Helmholtz projection replaced by a...
Scientific, Seminar
PIMS-CORDS SFU Operations Research Seminar: Charles Audet
March 14, 2024
Simon Fraser University
The topic of this talk is on Blackbox optimization (BBO), the study of applications, attributes, and solutions of optimization problems in which the values of one or more of the functions defining the problem are provided through blackboxes. The Mesh...
Scientific, Seminar
UBC Number Theory Seminar: Simone Coccia
March 14, 2024
University of British Columbia
We will discuss conjectures and results regarding the Hilbert Property, a generalization of Hilbert's irreducibility theorem to arbitrary algebraic varieties. In particular, we will explain how to use conic fibrations to prove the Hilbert Property...
Scientific, Seminar
PIMS-UVic Discrete Math Seminar: Nina Kamcev
March 14, 2024
University of Victoria
Turán-type problems for hypergraphs have been an intriguing area of research. Despite significant efforts, the Turán density of F is known for only a few three-uniform hypergraphs F. This talk concerns Turán-type problems for 3-uniform tight cycles C...