Past Events
Scientific, Seminar
Pacific Dynamics Seminar: Anthony Sanchez
May 14, 2020
Online
Translation surfaces given by gluing two identical tori along a slit have genus two and two cone-type singularities of angle $4\pi$. There is a distinguished set of trajectories called saddle connections that are the straight lines trajectories...
Scientific, Seminar
Maryam Mirzakhani Day: Women in Mathematics Film Screening (Online)
May 12, 2020
Online
Filmed in Canada, Iran, and the United States, Secrets of the Surface: The Mathematical Vision of Maryam Mirzakhani examines the life and mathematical work of Maryam Mirzakhani, an Iranian immigrant to the United States who became a superstar in her...
Scientific, Seminar
University of Calgary Peripatetic Seminar: Juan Qiao (Online)
May 8, 2020
Online
Process calculus is a family of related approaches to formally model concurrent systems, e.g. Pi-calculus which pass channels as data along other channels; Ambient calculus which models distributed and mobile computations. Rho Calculus (Reflective...
Scientific, Seminar
UBC Algebraic Geometry Seminar: Nikita Karpenko (Online)
May 8, 2020
Online
We prove the last open case of the conjecture on the possible values of the first isotropy index of an anisotropic quadratic form over a field. It was initially stated by Detlev Hoffmann for fields of characteristic not 2 and then extended to...
Scientific, Seminar
Pacific Dynamics Seminar: Sophie MacDonald
May 7, 2020
Online
Classical results of Dobrushin and Lanford-Ruelle establish, in rough terms, that for a local energy function on a subshift without too much long-range order, the translation-invariant Gibbs measures are precisely the equilibrium measures. There are...
Scientific, Seminar
UBC Topology Seminar: Artem Kotelskiy (Online)
May 6, 2020
Online
A variety of cut-and-paste techniques is being developed to study Khovanov, Heegaard Floer and instanton homologies. We will describe one of such techniques, centered around immersed curves in surfaces. First, we will give an overview of existing...
Scientific, Seminar
UBC Math Bio Seminar: Herbert Levine (Online)
May 6, 2020
Online
Until very recently most cancer biologists operated with the assumption that the most common route to metastasis involved cells of the primary tumor transforming to a motile single-cell phenotype via complete EMT (the epithelial-mesenchymal...
Scientific, Seminar
The University of Utah Seminar in Ergodic Theory: Osama Khalil (Online)
May 5, 2020
Online
TBA
Scientific, Seminar
University of Calgary Peripatetic Seminar: Ben MacAdam (Online)
May 1, 2020
Online
In this talk we introduce Microlinear Lawvere theories, and show that differential objects in cartesian tangent categories are an example. One of the more striking applications of this theory is that every tangent category embeds into the Eilenberg...
Scientific, Seminar
UBC Topology Seminar: Antonio Alfieri (Online)
April 30, 2020
Online
I will introduce deformations of lattice cohomology corresponding to the knot homologies found by Ozsváth, Stipsicz and Szabó in https://arxiv.org/abs/1407.1795. If time permits I will show that by means of holomorphic triangles counting, one can...