The Multiplicativity of Fixed-Point Invariants
|Event Start Date||Wednesday, February 15, 2012|
Serra Hall, Room 128
|Event Start Time||12:30 pm - 1:00 pm|
The Multiplicativity of Fixed-point Invariants
The usual abstract framework of categorical trace is adequate for many theorems, but it fails to imply a very good multiplicativity theorem for fiber bundles. I will explain how the more general framework of "bicategorical traces" introduced by Kate Ponto solves this problem, resulting in a very general multiplicativity formula that subsumes all others. It also yields a new, abstract proof of the additivity theorem for quotients.
|Contact||Amy Prout | email@example.com | 619-260-4706|