Past Events

This talk describes an extension of Ravenel–Wilson Hopf ring techniques to C 2-equivariant homotopy theory. Our main application and motivation for introducing these methods is a computation of the RO(C 2)-graded homology of C 2-equivariant Eilenberg...

We invite you to join us for this two-hour online workshop led by Chandani Patel of New York University and co-presented by the Pacific Institute for the Mathematical Sciences (PIMS) and the Canadian Statistical Sciences Institute (CANSSI). Faculty...

The blow up of the anticanonical base point on X, a del Pezzo surface of degree 1, gives rise to a rational elliptic surface E with only irreducible fibers. The sections of minimal height of E are in correspondence with the 240 exceptional curves on...

In December 2020, Peter Scholze proposed a challenge to formally verify a theorem he and Dustin Clausen proved about the real numbers in the context of condensed mathematics, saying it might be his "most important theorem to date." I was part of the...

Given an affine space of matrices L and a matrix Θ ∈ L, consider the problem of computing the closest rank deficient matrix to Θ on L with respect to the Frobenius norm. This is a nonconvex problem with several applications in control theory...

Optimal transportation, at its core, is a powerful framework for obtaining structured yet general couplings between general probability measures based on matching underlying characteristics. This framework lends itself naturally to applications in...

We define vertex-colourings for edge-coloured digraphs, which unify the theory of P-partitions and proper vertex-colourings of graphs. We use our vertex-colourings to define generalized chromatic functions, which merge the chromatic symmetric and...

In this talk, we will consider Riemannian metrics with scalar curvature bounded from below and discuss the possible behavior of the sequence under various non-collapsing assumption. This is based on joint works with A. Naber, R. Neumayer, P. Topping...

Space-time finite element methods (FEMs) are likely to grow in popularity due to the ongoing growth in the size, speed, and parallelism of modern computing platforms. The allure of space-time FEMs is both intuitive and practical. From the intuitive...

Kemeny's constant is an interesting and useful quantifier of how well-connected the states of a Markov chain are. Though it was first introduced in the 1960s, interest in this concept has recently exploded. This talk will provide an introduction to...