Siegel der Universität Augsburg

Universität Augsburg
Institut für Mathematik

 Siegel der Universität Augsburg

 

Seminar Topics in Symplectic Geometry

 

Pavel Hájek
Universität Augsburg
 
spricht am
 
Montag, 13. Mai 2019
 
um
 
10:00 Uhr
 
im
 
Raum 2004 (L1)
 
über das Thema:
 

»Explicit computation of Feynman integrals«

Abstract:
I will demonstrate that it is feasible to find a Hodge propagator and compute all Feynman integrals in perturbative Chern-Simons theory for the n-sphere with n=1 and n>=4; all of them vanish in the latter case. The Feynman graphs in question consist of trivalent internal vertices decorated with integration variables, univalent external vertices decorated with harmonic forms, and internal edges decorated with the propagator. For n=2, all integrals for graphs with no external vertex vanish. For n=3, all integrals for graphs with at least one external vertex vanish.

 

Hierzu ergeht herzliche Einladung.
Prof. Dr. Kai Cieliebak, Prof. Dr. Urs Frauenfelder, Dr. Lei Zhao


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