Séminaire de géométrie algébrique

Honglu Fan (ETH): Absolute and relative quantum cohomology

Europe/Paris
001 (batiment I)

001

batiment I

Département de mathématiques Bâtiment I Faculté des Sciences 2 Boulevard Lavoisier F-49045 Angers cedex 01 France
Description

In a joint work with Longting Wu and Fenglong You, we defined relative quantum cohomology rings by introducing relative Gromov-Witten invariants with negative contact orders. I will compare the definitions of absolute and relative quantum rings, try to explain how the WDVV equation (associativity) motivates our definition of negative contacts, and perhaps show some examples if time permits.