The quasitopos hull of the construct of closure spaces

[EN] In the list of convenience properties for topological constructs the property of being a quasitopos is one of the most interesting ones for investigations in function spaces, differential calculus, functional analysis, homotopy theory, etc. The topological construct Cls of closure spaces and co...

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Detalhes bibliográficos
Autores: Claes, Veerle, Sonck, G.
Formato: artículo
Fecha de publicación:2003
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/82301
Acesso em linha:https://riunet.upv.es/handle/10251/82301
Access Level:acceso abierto
Palavra-chave:Topological construct
Closure space
Extensional topological construct
Quasitopos
Cartesian closed category
Cartesian closed topological hull
Descrição
Resumo:[EN] In the list of convenience properties for topological constructs the property of being a quasitopos is one of the most interesting ones for investigations in function spaces, differential calculus, functional analysis, homotopy theory, etc. The topological construct Cls of closure spaces and continuous maps is not a quasitopos. In this article we give an explicit description of the quasitopos topological hull of Cls using a method of F. Schwarz: we first describe the extensional topological hull of Cls and of this hull we construct the cartesian closed topological hull.