Please note that the list below only shows forthcoming events, which may not include regular events that have not yet been entered for the forthcoming term. Please see the past events page for a list of all seminar series that the department has on offer.

 

Past events in this series


Tue, 10 Jun 2025
15:30
L4

Cohomological Donaldson—Thomas invariants for 3-manifolds

Pavel Safronov
(Edinburgh University)
Abstract
Cohomological Donaldson—Thomas theory associates cohomology groups to various moduli spaces in algebraic geometry, such as the moduli space of coherent sheaves on a Calabi—Yau 3-fold. In this talk I will explain some recent results on cohomological DT invariants in the setting of a real 3-manifold $M$. In terms of string theory it corresponds to counting D3 branes in the compactification of a type IIB string theory on $T^* M$. This setting of DT theory is particularly interesting due to its connections to topology (via skein modules), geometric representation theory (geometric Langlands program), and mathematical physics (analytic continuation of Chern—Simons theory). This talk is based on papers joint with Gunningham, Kinjo, Naef, and Park.



 

Tue, 17 Jun 2025
15:30
L4

Quivers and curves in higher dimensions

Hulya Arguz
(University of Georgia)
Abstract

Quiver Donaldson-Thomas invariants are integers determined by the geometry of moduli spaces of quiver representations. I will describe a correspondence between quiver Donaldson-Thomas invariants and Gromov-Witten counts of rational curves in toric and cluster varieties. This is joint work with Pierrick Bousseau.