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On a Hopf operad containing the Poisson operad

Frederic Chapoton
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Abstract

A new Hopf operad Ram is introduced, which contains both the well-known Poisson operad and the Bessel operad introduced previously by the author. Besides, a structure of cooperad R is introduced on a collection of algebras given by generators and relations which have some similarity with the Arnold relations for the cohomology of the type A hyperplane arrangement. A map from the operad Ram to the dual operad of R is defined which we conjecture to be a isomorphism.

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Frederic Chapoton. 2002-12-02. On a Hopf operad containing the Poisson operad. https://doi.org/10.2140/agt.2003.3.1257

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