Events - April 2023

Steve Rayan, University of Saskatchewan

"Resolutions of finite quotient singularities and quiver varieties"

Jun-Yong Park, University of Melbourne

"Height moduli on algebraic stacks and counting families of varieties"

Andrej Vukovic, Department of Pure Mathematics, University of Waterloo

"Perfectoid Spaces, Diamonds, and Applications"

I explain Peter Scholze's concepts of perfectoid spaces and diamonds, then describe some applications to the Langlands program.

This seminar will be held both online and in person:

Nikon Kurnosov, University College London

"Holomorphic symplectic manifolds: IHS vs BG-manifolds"

Gwyneth Moreland, Harvard University

"Nef and effective cones of the Hilbert scheme of 3 points in $\mathbb{P}^3$"

We compute some higher (co)dimension nef and effective cones of the Hilbert scheme of 3 points in $\mathbb{P}^3$. This involves studying the orbits of the PGL action on the Hilbert scheme, as well as extending Mallavibarrena and Sols' bases for the Chow groups of Hilbert schemes of points on $\mathbb{P}^2$ to the case of the Hilbert scheme of 3 points in $\mathbb{P}^3$. This work builds on results of Ryan and Stathis.

Andrej Vukovic, Department of Pure Mathematics, University of Waterloo

"Perfectoid Spaces, Diamonds, and Applications"

I explain Peter Scholze's concepts of perfectoid spaces and diamonds, then describe some applications to the Langlands program.

This seminar will be held both online and in person:

George Domat, Rice University

"Big Mapping Class Groups in Dimensions 0, 1, and 2"

Luke MacLean, Department of Pure Mathematics, University of Waterloo

"Computability-Theoretic Properties of Superatomic Boolean Algebras"

Lucia Martin Merchan, Department of Pure Mathematics, University of Waterloo

"Formality of Joyce's manifolds (Part 2)"

Eric Boulter, Department of Pure Mathematics, University of Waterloo

"Vector bundles on non-Kähler elliptic surfaces"