Past Events
Scientific, Seminar
URegina Topology & Geometry Seminar: Catherine Ray
October 4, 2023
University of Regina
The action of the automorphisms of a formal group on its deformation space is crucial to understanding periodic families in the homotopy groups of spheres and the unsolved Hecke orbit conjecture for unitary Shimura varieties. We can explicitly pin...
Scientific, Seminar
UCalgary Peripatetic Seminar: Robin Cockett
October 4, 2023
University of Calgary
Moses Schonfinkel invented “combinatory logic” — aka combinatory algebra (CA ) — in 1920. It consisted of a binary operation and two constants S and K (called combinators by Haskell Curry who further investigated CAs in the 1950s) which satisfy just...
Scientific, Seminar
L-functions in Analytic Number Theory: Michaela Cully-Hugill
October 3, 2023
University of Lethbridge
The prime number theorem (PNT) gives us the density of primes amongst the natural numbers. We can extend this idea to consider whether we have the asymptotic number of primes predicted by the PNT in a given interval. Currently, this has only been...
Scientific, Seminar
UBC Mathematics of Information, Learning and Data Seminar: Arvin Sahami
October 3, 2023
University of British Columbia
The design of statistical experiments is a classical topic in statistics, dating back to work of Fisher in the 1930s. One of the mathematical objects used to plan experiments is an "orthogonal array", defined by C. R. Rao. In 1947, Rao proved that...
Scientific, Seminar
UWashington Distinguished Seminar in Optimization and Data: Ryan O'Donnell
October 2, 2023
University of Washington
I will talk about: New efficient algorithms for quantum state tomography (the quantum analogue of estimating a probability distribution). Why you should care about the difference between total variation distance and Hellinger distance and KL...
Scientific, Seminar
UAlberta Math Biology Seminar: Keith Tierney
October 2, 2023
University of Alberta
Humans are affecting the planet in diverse ways. One of those that receives scant attention is the effect that chemicals are having on life. In this talk, I will use data from my lab on a variety of animal models, including invertebrates and...
Scientific, Seminar
SFU Applied & Computational Math Seminar Series: David Smith
September 29, 2023
Simon Fraser University
We describe a new form of diagonalization for linear two point constant coefficient differential operators with arbitrary linear boundary conditions. Although the diagonalization is in a weaker sense than that usually employed to solve initial...
Scientific, Seminar
PIMS MSS Colloquium: Detlev Hoffmann
September 28, 2023
University of Alberta
Consider two finitely generated field extensions K and L of the same transcendence degree over some base field F. Suppose these extensions become isomorphic over F after adjoining some variables. Does this imply that K isalready isomorphic to L over...
Scientific, Seminar
SFU Number Theory and Algebraic Geometry Seminar: Nils Bruin
September 28, 2023
Simon Fraser University
Decomposable abelian varieties, and particularly decomposable Jacobians, have a long history; mainly in the form of formulas to compute hyperelliptic integrals in terms of elliptic ones. The first case where one can have a decomposable Jacobian...
Scientific, Colloquia
PIMS UNBC Distinguished Colloquium: Jingwei Hu
September 28, 2023
University of Northern British Columbia
The Vlasov-Landau-Maxwell equation is often regarded as the first-principle physics model for plasmas, which collectively accounts for particle transport, electromagnetic field effects, and particle collisions. We introduce a novel particle method...