Past Events

E.g., Nov 6, 2025

Mathav Murugan

UBC
On the energy image density conjecture of Bouleau and Hirsch

November 5, 2025

ESB 2012

We affirmatively resolve the energy image density conjecture of Bouleau and Hirsch (1986). This conjecture generalizes a foundational result in Malliavin calculus: the non-degeneracy of the Malliavin matrix of a random variable implies absolute continuity of its law. This property is a key step... Read more

  • Probability

Mathav Murugan

UBC
On the energy image density conjecture of Bouleau and Hirsch

November 5, 2025

We affirmatively resolve the energy image density conjecture of Bouleau and Hirsch (1986). This conjecture generalizes a foundational result in Malliavin calculus: the non-degeneracy of the Malliavin matrix of a random variable implies absolute continuity of its law. This property is a key step... Read more

  • Probability

Dr. Nargess Khalilgharibi

University College London, Lab for Molecular Cell Bio MRC-UCL
The role of basement membrane mechanics in the form and function of tissues

November 5, 2025

Zoom

Epithelial tissues that line many of the body organs are often formed by a layer of living cells surrounded by the non-living basement membrane (BM). During development and in normal physiology, the organs and their lining epithelial tissues are exposed to different rates and extents of... Read more

  • Mathematical Biology

Severin Schraven

Technical University Munich (TUM)
Expansion coefficients of powers of Vandermonde determinants

November 4, 2025

ESB 4127 (PIMS)

Powers of Vandermonde determinants serve as model wave functions for the fractional quantum Hall effect. In this talk I will explain how one can realize the coefficients in the monomial basis as expectation values of operator products and how this captures the relevant features of those wave... Read more

  • Differential geometry
  • Mathematical Physics
  • Partial Differential Equations

Kasia Jankiewicz

UBC
Algebraic fiberings of groups

October 31, 2025

ESB 2012 and Zoom

We say that a finitely generated group algebraically fibers if it admits a homomorphism onto the integers with finitely generated kernel. This is a group theoretic analogue of the manifold property of being a fibre bundle over a circle. In this talk, I will give an overview of this and related... Read more

Daniel Cooney

University of Illinois Urbana-Champaign
Modeling the Evolution of Cooperation at Multiple Levels of Organization

October 31, 2025

ESB 4133

Natural selection often simultaneously operates across multiple levels of biological organization, with examples of such cross-scale evolutionary dynamics arising in settings including the evolution of the early cell, the evolution of virulence, and the sustainable management of common-pool... Read more

  • Mathematical Biology

Daniel Cooney

University of Illinois Urbana-Champaign
Modeling the Evolution of Cooperation at Multiple Levels of Organization

October 31, 2025

ESB 4133

Natural selection often simultaneously operates across multiple levels of biological organization, with examples of such cross-scale evolutionary dynamics arising in settings including the evolution of the early cell, the evolution of virulence, and the sustainable management of common-pool... Read more

  • Mathematical Biology

Rentian Yao

UBC
From Snapshots to Dynamics: An Optimal Transport Approach

October 29, 2025

ESB 2012

Many modern datasets capture populations only at isolated time points, leaving us with snapshots rather than continuous trajectories. How can we reconstruct the underlying dynamics from such partial views? In this talk, I will present a series of projects that use entropic optimal transport (EOT... Read more

  • Probability

Gang Tian

BICMR and Peking University
Some progress on Ricci flow

October 29, 2025

MATH126

In this talk, I will first discuss some results on Ricci flow on compact complex manifolds with positive first Chern class. Those manifolds are also referred as Fano manifolds. Next I will discuss a Laplacian comparison for manifolds with Kato bound on curvature and its applications, in... Read more

  • Differential geometry
  • Mathematical Physics
  • Partial Differential Equations

Maxine Calle

U Penn
Cut-and-paste K-theory of manifolds and SK-automorphisms

October 28, 2025

Given two manifolds M and N, one can ask whether it is possible to cut M up into pieces and reassemble them to obtain N. This “cut-and-paste” (SK) relation fits into the framework of scissors congruence K-theory, which is an extension of higher algebraic K-theory to more general settings. In... Read more

  • Topology