Past Events
Scientific, Seminar
UBC Algebra and Algebraic Geometry: Sujatha Ramdorai
October 21, 2024
University of British Columbia
Let E be an elliptic curve over a number field F. We will discuss the structure of certain modules that arise in the Iwasawa theory of elliptic curves and their applications to the growth of Mordell-Weil ranks along infinite Galois extensions of F...
Scientific, Seminar
UAlberta Math Biology Seminar: Ali Hamidoglu
October 21, 2024
University of Alberta
To effectively reduce methane emissions from oil sands tailings ponds, it is crucial to comprehensively understand the characteristics of methane input and the specific contribution of each element to the overall emission. In this procedure, one must...
Scientific, Seminar
SFU Mathematics of Computation, Application and Data ("MOCAD") Seminar: Antoine Cerfon
October 18, 2024
Simon Fraser University
Stellarators are promising magnetic fusion devices for electricity generation, because the dynamics of the hot fusion fuel - called a plasma - is largely determined by external control, as opposed to dynamical self-organization, as is the case for...
Scientific, Seminar
UBC Number Theory Seminar: Lucas Villagra Torcomian
October 18, 2024
University of British Columbia
Let f and g be two newforms with equal coefficient fields. In this talk we will see how a congruence between the Galois representations of f and g for a sufficiently large prime p implies strong conditions between the algebras of endomorphisms of the...
Scientific, Seminar
UCalgary Peripatetic Seminar: Geoff Vooys
October 18, 2024
University of Calgary
In everybody’s first course in category theory, we learn that categories have two different flavours of morphism: 0-morphisms (which are categories themselves), 1-morphisms (which are functors), and 2-morphisms (which are natural transformations). In...
Scientific, Seminar
UCalgary Algebra and Number Theory Seminar: Gaurav Patil
October 17, 2024
Online
We describe parametrizations of rings that generalize the notions of monogenic rings and binary rings. We use these parametrizations to give better lower bounds on the number of number fields of degree n and bounded discriminant.
Scientific, Seminar
PIMS-CORDS SFU Operations Research Seminar: Gabriel Jarry-Bolduc
October 17, 2024
Simon Fraser University
The cosine measure is a tool that tells you how well a set of directions is covering the space $\mathbb{R}^n$. In this talk, we extend the concept of cosine measure by defining the cosine measure relative to a subspace. This novel definition might be...
Scientific, Seminar
UVictoria Probability and Dynamics Seminar: Leonie Papon
October 17, 2024
Online
I will present a coupling between a massive planar Gaussian free field (GFF) and a random curve in which the curve can be interpreted as the level of the field. This coupling is constructed by reweighting the law of the standard GFF-SLE_4 coupling. I...
Scientific, Seminar
UVictoria Discrete Math Seminar: Hermie Monterde
October 17, 2024
University of Victoria
A network of interacting qubits (usually subatomic particles) can be modelled by a connected weighted undirected graph $G$. The vertices and edges of $G$ represent the qubits and their interactions in the network, respectively. Quantum mechanics...
Scientific, Seminar
UW Combinatorics and Geometry Seminar: Scott Neville
October 16, 2024
University of Washington
Quivers and their mutations play a fundamental role in the theory of cluster algebras. We focus on the problem of deciding whether two given quivers are mutation equivalent to each other. Our approach is based on introducing an additional structure...