Physics – Mathematical Physics
Scientific paper
2009-05-14
Physics
Mathematical Physics
Rewritten and expanded version of math-ph/0611014
Scientific paper
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.
Baditoiu Gabriel
Rosenberg Steven
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