Wave-Function renormalization and the Hopf algebra of Connes and Kreimer
classification
🧮 math-ph
math.MP
keywords
algebrahopfrenormalizationwave-functionaccountconnesconnes-kreimerdiffeomorphisms
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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.
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