Past Events

E.g., Sep 24, 2025

Iain Moyles

York University
Pseudo Matching To Identify Layers in Solid Electrolytes

May 7, 2025

MATH 225

We present a continuum model of charge transfer in a solid electrolyte which has a logarithmic singularity owing to a filling and emptying process. We use an auxiliary variable to regularize and simulate the model. We show that an electrically neutral bulk layer is present along with space... Read more

  • Scientific Computing

Amin Soofiani

UBC
Hensel's lemma for the norm principle for groups of type $D_n$

May 7, 2025

MATH 204

Let $G$ be a linear algebraic group defined over a field $K$. The Norm Principle for $G$ examines how the base change of $G$ to finite separable field extensions of $K$ behaves with respect to the norm map of the field extensions. It remains an open question whether the norm principle holds for... Read more

  • Number Theory

Brett Kolesnik

The University of Warwick
Combinatorial applications of the Lévy–Khintchine formula

May 7, 2025

MATH 105

The Lévy–Khintchine formula relates an infinitely divisible probability measure to its Lévy measure, which controls the jumps of the associated Lévy process. If the Lévy measure is well behaved then the two measures are asymptotically equivalent (the one big jump principle). Using this framework... Read more

  • Probability

Alex Mogilner

NYU Courant Institute
Building mathematical model of cell leading edge from multiplex data

May 7, 2025

MATX 1100

Many cells in our body migrate - 'good' examples are wound healing, embryogenesis and immune response; 'bad' example is metastasis. Migration starts with leading edge protrusion, which is enabled by branching growth of actin network and resisted by membrane tension. Two main molecular players in... Read more

  • Mathematical Biology

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

Claudius Zibrowius

Ruhr-University Bochum
Khovanov homology and Conway mutation

May 7, 2025

MATH 104

What has homological mirror symmetry ever done for you? I will give my personal answer to that question and discuss joint work in progress with Liam Watson and Artem Kotelskiy concerning the behaviour of Khovanov homology under Conway mutation.

Claudius was a postdoctoral fellow at... Read more

  • Algebra and Algebraic geometry
  • Topology

Ben Young

University of Oregon
Single and Double Dimer problems from geometry

May 7, 2025

MATH 104

This will be an introduction to the single- and double-dimer models, which arise in many places in mathematics (including in equivariant localization calculations of enumerative invariants). Read more

  • Algebra and Algebraic geometry
  • Topology

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

John Stockie

Simon Fraser University
An immersed boundary model for fluid-structure interaction in the cochlea

May 7, 2025

MATH 225

The mammalian ear has a remarkable ability to distinguish sounds that differ only slightly in frequency, while at the same time amplifying these signals so that they can be converted into neural impulses. This phenomenon is commonly attributed to some form of mechanical resonance within the... Read more

  • Scientific Computing

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