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MATHEMATICS SEMINARS 2010


Friday, 12 February, at 14:30


Dr. Gabriel Baditoiu
(Romanian Academy of Sciences, Bucharest)


"Lax pair equations and Connes-Kreimer renormalization"

Abstract: We find a Lax pair equation corresponding to the
Connes-Kreimer Birkhoff factorization of the character group of a Hopf
algebra. This flow preserves the locality of counterterms. In
particular, we obtain a flow for the character given by Feynman rules,
and relate this flow to the Renormalization Group Flow. This is a joint
work with Steven Rosenberg.

Venue: EULER LECTURE HALL (ICTP Leonardo Building, Terrace level)