Past Events

I will present the invariance of extremal Kahler manifolds under a suitable class of bimeromorphic morphisms. Focusing mostly on the cscK (constant scalar curvature Kähler) case, I will show how the main result is obtained as a consequence of a...

One of the main goals of statistical mechanics is to understand critical phenomena of lattice models. This can be achieved by computing the so-called critical exponents, which govern algebraic scaling near or at the critical point. This task is...

We built an age- and immunity-stratified COVID-19 model with setting-specific contacts (home, school, workplace, other) and calibrated it to Ontario’s pre-Omicron incidence and hospital admissions. Counterfactuals toggled vaccination and varied NPIs...

Topic: Approximation and Our Intellectual History Abstract: Philosophers and mathematicians are lovers of truth—exact truth; in many ways, this accounts for our interwoven histories. But this is a tragic love, constantly frustrated by the elusiveness...

I shall start with reminders on congruences and p-adic numbers, then give Hasse's contribution to the local-global principle. I shall then mention counterexamples to the "Hasse principle" and then describe various ways which have been devised to...

In this talk we see how representation theory can be used in numerical methods for partial differential equations (PDEs) and how numerics can give more efficient methods for computational problems in representation theory. In particular, we will see...

The Laplacian matrix L of a signed graph G may or may not be invertible. We present an entrywise combinatorial formula for the Moore-Penrose inverse of L, obtained by deriving a combinatorial expression for the Moore-Penrose inverse of an incidence...

Join us for a the first colloquium with Professor Curtis McMullen, Fields Medalist and professor of mathematics at Harvard University. In this talk, titled "The Question Mark Function, Welding, and Complex Dynamics," Prof. McMullen will explore a...

Let $K$ be an algebraic number field. The Primitive Element Theorem implies that the number field $K$ can be generated over the field of rational numbers by a single element of $K$. We call such an element a generator of $K$. A simple and natural...

We will discuss a class of ideals in a polynomial ring studied by Mark Haiman in his work on the Hilbert scheme of points and discuss how they are related to homology of affine Springer fibers, Khovanov-Rozansky homology of links, and to the ORS...