Events
EDGE: Richard Thomas (Imperial College) - Vafa-Witten invariants for projective surfaces
October 1st 15:30 - 16:30
Location: Bayes Centre 5.10
Description: Vafa and Witten proposed new gauge-theoretic invariants of 4-manifolds in 1994. I’ll explain how to define them, refine them, and calculate some of them, when the 4-manifold is a complex projective surface.