Descent for Priestley Spaces

• Autor(es): Dias, Margarida ; Sobral, Manuela
• Data: 2005
• Identificador Persistente: http://hdl.handle.net/10316/11393
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): Ordered (preordered) topological spaces; Priestley space; Stone space; Regular and universal regular epimorphisms; (ef ective) descent morphisms; Monadic categories
• Tipo de Documento: Preprint
• Idioma: Inglês

Descrição

A characterization of descent morphism in the category of Priestley spaces, as well as necessary and su cient conditions for such morphisms to be e ective are given. For that we embed this category in suitable categories of preordered topological spaces were descent and e ective morphisms are described using the monadic description of descent. FCT/Centro de Matemática da Universidade de Coimbra