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Abstract: We define two coproducts for cycle-free oriented graphs, thus building up twocommutative con- nected graded Hopf algebras, such that one is acomodule-coalgebra on the other, thus generalizing the result obtainedpreviously for Hopf algebras of rooted trees.



Autor: Dominique Manchon

Fuente: https://arxiv.org/







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