Andrés Ángel
(Departamento de Matemáticas, Universidad de Los Andes)
In this talk I will report on work of Givental and Coates interpreting intersection numbers of moduli spaces of stable curves as Gromov-Witten invariants with values in complex cobordisms.
This interpretation allows us to see the problem as a quantum version of the Hirzebruch-Riemann-Roch theory corresponding to the Chern-Dold character from the cobordisms to cohomology.