Covers counting via Feynman calculus

Speaker:

Maksim Karev

Date:

Fri, 06/09/2013 - 11:15 - 12:00

Location:

MPIM Lecture Hall [2]

Parent event:

Conference on "Tropical aspects in Geometry and Topology" [3]

Double Hurwitz numbers are the weighted numbers of ramified covers of a Riemann sphere with some specified ramificaton data. I will describe a way to count double Hurwitz numbers using the complex Feynman calculus formalism and discuss some related problems.