Past Events

TBA

I will provide an introduction to simplicial sets, which will serve as foundation for the rest of the lecture series. We will discuss examples and a few constructions, such as the function complex and geometric realization.

For every finite group H and every finite H-module A, we determine the subgroup of negligible classes in H^2(H,A), in the sense of Serre, over fields with enough roots of unity. As a consequence, we show that for every odd prime p and every field F...

We will explore how a Fourier optimization framework may be used to study two classical problems in number theory involving Dirichlet characters: The problem of estimating the least character non-residue; and the problem of estimating the least prime...

Calling all UBC students, staff, faculty, and researchers - all are welcome - FREE to attend! Make sure to register so you don’t miss out on this exciting opportunity to hear from a leader in science communication and equity! Join us for a morning...

The tensor category of vertex operator algebras arises from two dimensional conformal field theories and has many applications such as representation theory, topological quantum field theory and quantum computations. A major problem of tensor...

In this talk, we will address areas of recent work centered around the themes of fairness and foundations in machine learning as well as highlight the challenges in this area. We will discuss recent results involving linear algebraic tools for...

The challenge of solving energy distribution grid planning problems, including operation and expansion planning, stems from their combinatorial nature and the vast solution space. Several models and techniques have been proposed in the literature to...

The classical McKay correspondence shows that there is a bijection between irreducible representations of finite subgroups $G$ of $\mathrm{SL}(2,\mathbb{C})$ and the exceptional divisors of the minimal resolution of the singularity $\mathbb{C}^2/G$...

In 1966, Tate proposed the Artin–Tate conjectures, which expresses special values of zeta function associated to surfaces over finite fields. Conditional on the Tate conjecture, Milne–Ramachandran formulated and proved similar conjectures for smooth...