HET- seminar: Stefan Weinzierl

Speaker: Stefan Weinzierl

Title: Feynman integrals and intersection numbers

Abstract: The reduction of Feynman integrals to master integrals and the differential equations for the latter is usually done with the help of integration-by-parts identities (involving large systems of linear equations). Intersection theory offers an alternative. In this talk I will review how intersection theory can be used for these tasks and discuss an efficient method to compute the intersection numbers.