Seminars and colloquia

E.g., Mar 4, 2026

Yang Hu

U Regina
Functor calculus and vector bundle enumeration

March 10, 2026 - 1:00 pm to 2:00 pm

Enumerating vector bundles of a fixed rank over a given manifold is a classical question in topology. While vector bundles are stably computable via K-theory, in the unstable range they become much harder to detect. In this talk, we will demonstrate how the orthogonal/unitary ... Read more
  • Topology

Xin Zhou

Cornell University
Volume Spectrum, minimal and constant mean curvature surfaces

March 12, 2026 - 3:30 pm to 4:30 pm

ESB 4133

The volume spectrum is an analogue of the Laplace spectrum, defined through the area functional together with homological or cohomological relations in the space of hypercycles. In this talk, I will introduce several versions of the volume spectrum and highlight its ... Read more
  • Differential geometry
  • Mathematical Physics
  • Partial Differential Equations

Eviatar Bach


colloquium Mar 13, RESERVED SLOT for Eviatar Bach

March 13, 2026 - 3:00 pm to 4:00 pm

ESB 2012 and Zoom

TBA ***** There will be coffee, tea and snacks at PIMS from 2:30 PM to 3 PM. *****Zoom information: https://ubc.zoom.us/s/68285564037 Meeting ID: 682 8556 4037 Passcode: 636252 Read more

Guiseppe Genovese

Institute of Mathematics of the Albert-Ludwigs University of Freiburg
From belief propagation to approximate message passing in a simple model

March 18, 2026 - 3:30 pm to 4:30 pm

The belief propagation (BP) equations are recursive equations for the one dimensional marginals of a given probability distribution. A key property is that there is a graphical representation of the dependency structure, the so-called factor graph. If the factor graph is a ... Read more
  • Probability


colloquium Mar 20, 2026 free slot

March 20, 2026 - 3:00 pm to 4:00 pm

ESB 2012 and Zoom

If you happen to have a visitor at this time who excels in giving talks in addition to being a talented researcher, we would greatly appreciate it if you could let us know. TBA ***** There will be coffee, tea and snacks at PIMS from 2:30 PM to 3 PM. *****Zoom information: ... Read more

Connor Mooney

UC Irvine
TBA

March 23, 2026 - 4:00 pm to 5:30 pm

PIMS Library - ESB 4133

TBA This is a seminar talk of the Kantorovich Initiative. Read more
  • Differential geometry
  • Mathematical Physics
  • Partial Differential Equations

Nicolaos Kapouleas

Brown University
Minimal surfaces and hypersurfaces in the unit spheres and their index

March 24, 2026 - 3:30 pm to 4:00 pm

PIMS Library - ESB 4133

In the first part of the talk (introduction) I will recall classical and semi-classical results and conjectures. In the second part I will review the current status of PDE gluing constructions of minimal surfaces. In the last (main) part of the talk I will present the recent ... Read more
  • Differential geometry
  • Mathematical Physics
  • Partial Differential Equations

Melanie Matchett Wood

Harvard University
Finite quotients of 3-manifold groups (PIMS network-wide colloquium)

March 26, 2026 - 1:30 pm

Zoom. Register here: https://ubc.zoom.us/meeting/register/OoGJFra5SMiLY8pSQJqhJw#/registration

Didier Lesesvre


From four squares to trace formulas: an introduction to arithmetic statistics on automorphic forms

March 27, 2026 - 3:00 pm to 4:00 pm

ESB 2012 and Zoom

In 1671, Bachet conjectured that every natural number can be written as sum of four squares. A century of efforts and ideas was needed for Lagrange to reach a proof, and almost another century for Jacobi to quantify precisely this result. Today, variations of this elementary ... Read more


colloquium April 10, 2026 – free slot

April 10, 2026 - 3:00 pm to 4:00 pm

ESB 2012 and Zoom

If you happen to have a visitor at this time who excels in giving talks in addition to being a talented researcher, we would greatly appreciate it if you could let us know. TBA ***** There will be coffee, tea and snacks at PIMS from 2:30 PM to 3 PM. *****Zoom information: ... Read more