Descent for discrete (co)fibrations

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.

Bibliographic Details
Main Author: Sobral, Manuela (author)
Format: other
Language:eng
Published: 2003
Subjects:
Online Access:http://hdl.handle.net/10316/11440
Country:Portugal
Oai:oai:estudogeral.sib.uc.pt:10316/11440