| Speaker: | Edward Segal (University College London) |
|---|---|
| Title: | Discriminants and Brane Monodromy |
| Date (JST): | Tue, Nov 21, 2017, 15:30 - 17:00 |
| Place: | Seminar Room B |
| Abstract: | Given a toric Calabi-Yau variety, the physics of gauged linear sigma models predicts the action of a large group of autoequivalences on the derived category of the variety. This group is the fundamental group of a certain space, obtained by deleting the GKZ-discriminant locus from the dual torus. I will survey previous work on constructing this predicted action, most of which has focused on special cases where the discriminant locus is a hyperplane arrangement. I'll then discuss some work-in-progress (with Alex Kite) which aims to get beyond these cases. |
