30 jan 2018 -- 11:00
Aula Tricerri, DiMaI "Dini", Firenze
Let X be a smooth projective complex variety. One way to define the intersection product in the Chow ring CH*(X) is to use Chow’s moving lemma, which involves deforming a subvariety up to rational equivalence. I will discuss another approach using the theory of virtual fundamental classes, which allows a more transparent construction that avoids moving.