Past Events

E.g., Jul 17, 2025

Yu-Ting Chen

University of Victoria
Stochastic many-body delta-Bose gas in two dimensions

May 7, 2025

MATH 105

Schrodinger operators with delta-function potentials have a long history in the literature and also receive renewed interest in other areas, such as the Kardar–Parisi–Zhang equation. Such operators have the characteristics for allowing closed analytic solutions, but the solution forms and... Read more

  • Probability

Patrick Ingram

York University
Some results on arithmetic dynamics in positive characteristic

May 7, 2025

MATH 204

After a general overview of some open questions on arboreal Galois representations, we will present some recent work on the positive-characteristic case.

Patrick Ingram received his PhD from UBC in 2006, and has worked at the University of Toronto, University of Waterloo, Colorado... Read more

  • Number Theory

Jessica Conway

Penn State Eberly College of Science
Modeling HIV viral dynamics and ART

May 7, 2025

MATX 1100

Antiretroviral therapy (ART) effectively controls HIV infection, suppressing HIV viral loads to levels undetectable using commercial testing. Typically, suspension of therapy is followed within weeks by rebound of viral loads to high, pre-therapy level. However recent observations give nuance to... Read more

  • Mathematical Biology

Bill Casselman

University of British Columbia
Langlands and L-functions

May 7, 2025

MATH 100

An attempt to explain Langlands' contributions to non-experts. Read more

  • Number Theory

Zhichao Wang

Fudan University
Existence of embedded minimal tori in three-spheres with positive Ricci curvature

May 6, 2025

MATH 202

In this joint work with Xingzhe Li, we prove the strong Morse inequalities for the area functional in the space of embedded tori and spheres in the three sphere. As a consequence, we prove that in the three dimensional sphere with positive Ricci curvature, there exist at least 4 distinct... Read more

  • Differential geometry

Tai-Peng Tsai

UBC
Large discretely self-similar solutions to Oberbeck-Boussinesq system with Newtonian gravitational field

May 6, 2025

MATH 105

Discretely self-similar solutions to Oberbeck-Boussinesq system with Newtonian gravitational field for large discretely self-similar initial data are constructed in this note, extending the construction of Brandolese and Karch (arXiv:2311.01093) on self-similar solutions. It follows the approach... Read more

  • Partial Differential Equations

Xunzi Xie

UBC
Uniqueness of axisymmetric viscous flows originating from circular vortex filaments

May 6, 2025

MATH 105

In this talk, we outline the existence and uniqueness of axisymmetric solution to the Navier Stokes equation with vortex filament initial data established by Gallay and Sverak. This work is connected to a recent important result by the same authors establishing long time stability of the Oseen... Read more

  • Partial Differential Equations

Vanessa Radzimski

University of the Fraser Valley
The Mathematical Education of Canadian School Teachers: 1925 - 2025

May 6, 2025

MATH 225

In this talk, we will discuss the historical evolution of teacher certification and the qualifications to teach mathematics in Canada, focusing on the current educational pathways of future teachers. In particular, we will explore the role that mathematics departments play in the mathematical... Read more

  • Mathematics education

Weiyong He

University of Oregon
Isotopy problems on symplectic four manifolds and geometric flows

May 6, 2025

MATH 202

We will discuss the well-known isotopy problem in symplectic geometry in dimension four. Given a compact symplectic four manifold with a fixed symplectic class, a long standing problem is to ask whether all symplectic forms in the cohomology class are path connected (isotopic to each other).... Read more

  • Differential geometry

Shabnam Akhtari

Penn State Eberly College of Science
Representation of Integers by Binary Forms

May 6, 2025

MATH 204

Let F(x, y) be a binary form of degree at least 3 which is irreducible over the rationals. For any fixed non-zero integer m, Thue showed that the equation F(x, y) =m has at most finitely many solutions in integers x, y. I will discuss some fundamental work on bounding the number of integral... Read more

  • Number Theory