Hall algebra approach to cohomology rings
Date
Thursday, March 21, 2019 13:30 - 15:30
Speaker
Olivier Schiffmann (Département de Mathématiques d'Orsay)
Location
Big Seminar room Ground floor / Office Bldg West (I21.EG.101)
Series
Seminar/Talk
Tags
Mathematics and CS Seminar, mathematical_seminar_ics
Host
Tamas Hausel
Contact
I will discuss an approach to compute the cohomology ring of the moduli stacks of semistable vector bundles on a curve, using cohomological Hall algebras. In particular, we describe combinatorially the COHA of coherent sheaves on a curve.