Groupes de renormalisation pour deux algèbres de Hopf en produit
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Mohamed Belhaj MohamedWe consider two interacting connected graded Hopf algebras, the former being a comodule-coalgebra on the latter. We show how to define analogues of Connes-Kreimer's renormalization group and Beta function, when the graduation operator is replaced by any biderivation coming from an infinitesimal character of the second Hopf algebra.View original: http://arxiv.org/abs/1207.1482
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