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Title: Local homeomorphisms via ultrafilter convergence
Authors: Clementino, Maria Manuel 
Hofmann, Dirk 
Janelidze, George 
Keywords: Local homeomorphism; Discrete fibration; Ultrafilter
Issue Date: 2003
Publisher: Centro de Matemática da Universidade de Coimbra
Citation: Pré-Publicações DMUC. 03-13 (2003)
Abstract: Using the ultrafilter-convergence description of topological spaces, we generalize Janelidze-Sobral characterization of local homeomorphisms between finite topological spaces, showing that local homeomorphisms are the pullback-stable discrete fibrations.
Rights: openAccess
Appears in Collections:FCTUC Matemática - Artigos em Revistas Nacionais

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