Feynman Graphs in Quantum Field Theory and Algebraic Geometry

Feynman Graphs in Quantum Field Theory and Algebraic Geometry

organized by von Hél̀ène Esnault und Dirk Kreimer

Time: 10:15-11:45 Uhr

Place: Freie Universität Berlin, Arnimallee 3, SR 005

Dates:

October 31: F. Brown

November 28: E. Panzer

December 12: M. Berghoff: "Wonderful Renormalization"
Abstract: We take a look at the position space formulation of quantum field theory.
Here, renormalization translates into the problem of extending distributions a priori only defined on some configuration space C(n,M) to the whole n-fold product M^n.
This can be done systematically using the wonderful compactifications of DeConcini and Procesi.

February 13: M. Berghoff: Wonderful renormalization, part 2
Having constructed the wonderful models for subspace arrangements associated to Feynman diagrams we are now able to continue with the renormalization process.