The Hopf algebras of type B quasisymmetric functions and peak functions

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We show that with the appropriate choice of coproduct, the type B quasisymmetric functions form a Hopf algebra, and the recently introduced type B peak functions form a Hopf subalgebra.
9 pages

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Combinatorics, Rings and Algebras

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http://salesiana.dossiersoluciones.com/handle/123456789/118205

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0610976
 http://arxiv.org/abs/math/0610976

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arXiv