Twistings, crossed coproducts and Hopf-Galois coextensions

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dc.creatorCaenepeel, S.
dc.creatorWang, Dingguo
dc.creatorWang, Yanxin
dc.date2002-10-30
dc.date.accessioned2026-07-07T04:52:28Z
dc.date.available2026-07-07T04:52:28Z
dc.descriptionLet $H$ be a Hopf algebra. Ju and Cai introduced the notion of twisting of an $H$-module coalgebra. In this note, we study the relationship between twistings, crossed coproducts and Hopf-Galois coextensions. In particular, we show that a twisting of an $H$-Galois coextension remains $H$-Galois if the twisting is invertible.
dc.description20 pages
dc.identifierhttps://arxiv.org/abs/math/0210460
dc.identifierhttp://arxiv.org/abs/math/0210460
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/65478
dc.subjectQuantum Algebra
dc.subjectRings and Algebras
dc.subject16W30
dc.titleTwistings, crossed coproducts and Hopf-Galois coextensions
dc.typetext

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