Videos

Derived Algebraic Geometry And Its Applications - An arithmetic enrichment of the degree of a finite map, and applications to enumerative geometry

Presenter
March 26, 2019
Keywords:
  • A^1 homotopy theory
  • enumerative geometry
MSC:
  • 14F42
  • 19E15
Abstract
Using the Eisenbud-Khimshiashvili-Levine local degree, which is the A1-local degree of Morel in A1 homotopy theory, we define a degree of a finite map between smooth schemes over k. When the target is appropriately connected, this degree is a bilinear form over k. We discuss some applications to enumerative geometry over non-algebraically closed fields. This is joint work with Jesse Kass and Jake Solomon, and will also contain joint work with Padmavathi Srinivasan.