Stringy Kaehler moduli, mutation and monodromy

Date
2019/10/03 Thu 11:00 - 12:00
Room
Room 152, Building No.3
Speaker
Will Donovan
Affiliation
Tsinghua University
Abstract

The derived symmetries associated to a 3-fold admitting an Atiyah flop may be organised into an action of the fundamental group of a sphere with three punctures, thought of as a stringy Kaehler moduli space. I extend this to general flops of irreducible curves on 3-folds in joint work with M Wemyss, using a novel helix of sheaves supported on the flopping curve.