Twisted descent algebras and the Solomon-Tits algebra

Abstract : The purpose of the present article is to define and study a new class of descent algebras, called twisted descent algebras. These algebras are associated to the Barratt-Joyal theory of twisted bialgebras in the same way than classical descent algebras are associated to classical bialgebras. The formal properties of twisted descent algebras seem particularly meaningful in view of applications to discrete probabilities, to the geometry of Coxeter groups and buildings, and to symmetric group combinatorics.
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Article dans une revue
Advances in Mathematics, Elsevier, 2006, 199, pp.151-184
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https://hal.archives-ouvertes.fr/hal-00128596
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Soumis le : jeudi 1 février 2007 - 21:24:06
Dernière modification le : mercredi 27 juillet 2016 - 14:48:48

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Frederic Patras, Manfred Schocker. Twisted descent algebras and the Solomon-Tits algebra. Advances in Mathematics, Elsevier, 2006, 199, pp.151-184. <hal-00128596>

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