Seminar series
Date
Mon, 07 Nov 2022
14:15
14:15
Location
L5
Speaker
Chenjing Bu
Organisation
(Oxford University)
I will talk about homological enumerative invariants for vector bundles on algebraic curves. These invariants were defined by Joyce, and encode rich information about the moduli space of semistable vector bundles, such as its volume and intersection numbers, which were computed by Witten, Jeffrey and Kirwan in previous work. I will define a notion of regularization of divergent infinite sums, and I will express the invariants explicitly as such a divergent sum in a vertex algebra.