Zabrodsky Lecture 2: Cohomological Field Theories

Sun, 21/10/201811:00-12:00
Ross 70
Rahul Pandharipande (ETH Zurich)
Cohomological Field Theories (CohFTs) were introduced to keep track of the classes on the moduli spaces of curves defined by Gromov-Witten theories and their cousins. I will define CohFTs (following Kontsevich-Manin), explain the classification in the semisimple case of Givental-Teleman, and discuss the application to Pixton's relations which appear in the first lecture.