Physics – Mathematical Physics
Scientific paper
2001-03-15
Mod.Phys.Lett. A16 (2001) 299-303
Physics
Mathematical Physics
5 pages, no figure, talk presented in the conference "Brane New World and Noncommutative Geometry", Torino, Villa Gualino,(Ita
Scientific paper
10.1142/S0217732301003383
In this talk, we show how the Connes-Kreimer Hopf algebra morphism can be
extended when taking into account the wave-function renormalization. This leads
us to a semi-direct product of invertible power series by formal
diffeomorphisms.
Girelli Florian
Krajewski Thomas
Martinetti Pierre
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