Algebraic Geometry Date:  Friday, April 19, 2013 Location:  4088 EH (4:00 AM to 5:00 AM) Title:  BPS invariants Abstract:   BPS invariants, conjectured to exist by Gopaukmar-Vafa, would give a 4th (and in many ways superior) way to enumerate curves. I will explain how stable pairs give an approach to them. Speaker:  Richard Thomas Institution:  Imperial College Event Organizer:        Edit this event (login required). Add new event (login required). For access requests and instructions, contact math-webmaster@umich.edu Back to previous page Back to UM Math seminars/events page.