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Title: Descent for discrete (co)fibrations
Authors: Sobral, Manuela 
Keywords: Descent data; (e ective) descent morphisms; (co) fibrations; Discrete (co)fi brations; Lax epimorphisms
Issue Date: 2003
Publisher: Centro de Matemática da Universidade de Coimbra
Citation: Pré-Publicações DMUC. 03-05 (2003)
Abstract: We characterize the (e ective) E-descent morphisms in the category Cat of small categories, when E is the class of discrete fibrations or the one of discrete co fibrations, and prove that every e ective global-descent morphism is an e ective E-descent morphism while its converse fails.
Rights: openAccess
Appears in Collections:FCTUC Matemática - Artigos em Revistas Nacionais

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