Past Events

This event is part of the PIMS CRG Group on L-Functions in Analytic Number Theory. More details can be found on the webpage here: https://sites.google.com/view/crgl-functions/crg-weekly-seminar?authuser=0

Given a nonamenable transitive graph, does the plus state of the Ising model at low temperature stochastically dominate a high-density Bernoulli percolation? We'll discuss this question (asked by Liggett and Steif) and other questions of stochastic...

Here I will present some results on the dynamics of cell polarity models. I investigate two different models, one for the concentration of actin in the cytoskeleton of the cell and another for the concentration of nucleation promoting factors (NPF)...

The left regular representation of the symmetric group has a graded cousin constructed as a coinvariant quotient of the polynomial ring in n variables. This theory has fruitfully produced many interesting generalizations with a rich interplay between...

Many systems whose physics is generally well understood are modeled with differential equations. However, many of these differential equations have the property that they are sensitive to the choice of initial conditions. If one instead has snapshots...

In this talk, I will discuss a conjecture made by Fässler and Orponen on the restricted projections in R^3. In the first part, I will introduce some background on the projection problems and its relation with Furstenberg set problem and Szemerédi...

In this talk, I will introduce two SIS reaction-diffusion epidemic models with cognition, and the cognitive diffusion either takes a Fokker-Planck type diffusion obtained by Chapman's diffusion law (called random diffusion) or follows Fick's...

We will present the "method of killing homotopy groups" due to Cartan and Serre in the 1950s, a method to compute some homotopy groups of spheres. The method relies on the Hurewicz theorem and the Serre spectral sequence of the fibration that kills...

The quality of the triplet $(a,b,c)$, where $\gcd(a,b,c) = 1$, satisfying $a + b = c$ is defined as $$ q(a,b,c) = \frac{\max\{\log |a|, \log |b|, \log |c|\}}{\log \mathrm{rad}(|abc|)}, $$ where $\mathrm{rad}(|abc|)$ is the product of distinct prime...

Topology is the branch of mathematics concerned with shapes and their spatial properties. In this talk I’ll show how several ideas from classic algebraic topology – like cohomology, classifying spaces and vector bundles – can be used in machine...