Mappings on weakly Lindelöf and weakly regular-Lindel¨of spaces

[EN] In this paper we study the effect of mappings and some decompositions of continuity on weakly Lindelöf spaces and weakly regular-Lindelöf spaces. We show that some mappings preserve these topological properties. We also show that the image of a weakly Lindelöf space (resp. weakly regular-Lindel...

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Detalhes bibliográficos
Autores: Fawakhreh, Anwar Jabor, Kiliçman, Adem
Formato: artículo
Fecha de publicación:2011
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:10251/87092
Acesso em linha:https://riunet.upv.es/handle/10251/87092
Access Level:acceso abierto
Palavra-chave:Lindelöf
Weakly Lindelöf and weakly regular-Lindelöf space
Almost continuous and almost precontinuous functions
Descrição
Resumo:[EN] In this paper we study the effect of mappings and some decompositions of continuity on weakly Lindelöf spaces and weakly regular-Lindelöf spaces. We show that some mappings preserve these topological properties. We also show that the image of a weakly Lindelöf space (resp. weakly regular-Lindelöf space) under an almost continuous mapping is weakly Lindelöf (resp. weakly regular-Lindelöf). Moreover, the image of a weakly regular-Lindelöf space under a precontinuous and contracontinuousmapping is Lindelöf.