Coalgebra Extensions and Algebra Coextensions of Galois Type

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dc.creatorBrzezinski, Tomasz
dc.creatorHajac, Piotr M.
dc.date1997-08-09
dc.date1998-06-21
dc.date.accessioned2026-07-07T09:08:50Z
dc.date.available2026-07-07T09:08:50Z
dc.descriptionThe notion of a coalgebra-Galois extension is defined as a natural generalisation of a Hopf-Galois extension. It is shown that any coalgebra-Galois extension induces a unique entwining map $ψ$ compatible with the right coaction. For the dual notion of an algebra-Galois coextension it is also proven that there always exists a unique entwining structure compatible with the right action.
dc.description21 pages, LaTeX, uses amssymb. Major revision. Version to appear in Commun. Algebra
dc.identifierhttps://arxiv.org/abs/q-alg/9708010
dc.identifierhttp://arxiv.org/abs/q-alg/9708010
dc.identifierCommun. Algebra, 27:1347-1367, 1999
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/150867
dc.subjectQuantum Algebra
dc.subjectRings and Algebras
dc.subject16W30 17B37 81R50
dc.titleCoalgebra Extensions and Algebra Coextensions of Galois Type
dc.typetext

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