Corings with decomposition and semiperfect corings

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dc.creatorKaoutit, L. El
dc.creatorGómez-Torrecillas, J.
dc.date2009-02-13
dc.date.accessioned2026-07-07T12:41:34Z
dc.date.available2026-07-07T12:41:34Z
dc.descriptionWe give a characterization, in terms of Galois infinite comatrix corings, of the corings that decompose as a direct sum of left comodules which are finitely generated as left modules. Then we show that the associated rational functor is exact. This is the case of a right semiperfect coring which is locally projective and whose Galois comodule is a projective left unital module with superfluous radical.
dc.identifierhttps://arxiv.org/abs/0902.2273
dc.identifierhttp://arxiv.org/abs/0902.2273
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219816
dc.subjectRings and Algebras
dc.subjectCategory Theory
dc.titleCorings with decomposition and semiperfect corings
dc.typetext

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