An action-free characterization of weak Hopf-Galois extensions

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dc.creatorKadison, Lars
dc.date2004-09-29
dc.date2004-12-11
dc.date.accessioned2026-07-07T05:12:43Z
dc.date.available2026-07-07T05:12:43Z
dc.descriptionWe define comodule algebras and Galois extensions for actions of bialgebroids. Using just module conditions we characterize the Frobenius extensions that are Galois as depth two and right balanced extensions. As a corollary, we obtain characterizations of certain weak and ordinary Hopf-Galois extensions without reference to action in the hypothesis.
dc.description5 pages, clarification of main theorem with thanks to the referee of Algebra Montpellier Announcements
dc.identifierhttps://arxiv.org/abs/math/0409589
dc.identifierhttp://arxiv.org/abs/math/0409589
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/72683
dc.subjectQuantum Algebra
dc.subjectRings and Algebras
dc.subject13B05, 16W30
dc.titleAn action-free characterization of weak Hopf-Galois extensions
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