CMSA Mathematical Physics Seminar: Congruences on K-theoretic Gromov-Witten invariants
Jérémy Guéré - University of Grenoble, France
K-theoretic Gromov-Witten invariants of smooth projective varieties have been introduced by YP Lee, using the Euler characteristic of a virtual structure sheaf. In particular, they are integers. In this talk, I look at these invariants for the quintic threefold and I will explain how to compute them modulo 41, using the virtual localization formula under a finite group action, up to genus 19 and degree 40.