School Seminars and Colloquia

A new cohomology class in the moduli space of stable curves.

Algebraic Topology Seminar

by Paul Norbury


Institution: University of Melbourne
Date: Mon 16th October 2017
Time: 4:30 PM
Location: 107 Peter Hall

Abstract: I will define a cohomology class in the moduli space of stable curves. It shares many beautiful properties analogous to properties of intersection numbers on the moduli space proven in the Witten-Kontsevich theorem. Applications of this new cohomology class to various enumerative problems will be given.