Relative Collectionwise Normality

[EN] In this paper we study properties of relative collectionwise normality type based on relative properties of normality type introduced by Arhangel’skii and Genedi. Theorem Suppose Y is strongly regular in the space X. If Y is paracompact in X then Y is collectionwise normal in X. Example A T2 sp...

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Detalles Bibliográficos
Autores: Grabner, Eliser, Grabner, Gary, Miyazaki, Kazumi, Tartir, Jamal
Tipo de recurso: artículo
Fecha de publicación:2004
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/82559
Acceso en línea:https://riunet.upv.es/handle/10251/82559
Access Level:acceso abierto
Palabra clave:Paracompact
Collectionwise norma
Relative topological properties
Descripción
Sumario:[EN] In this paper we study properties of relative collectionwise normality type based on relative properties of normality type introduced by Arhangel’skii and Genedi. Theorem Suppose Y is strongly regular in the space X. If Y is paracompact in X then Y is collectionwise normal in X. Example A T2 space X having a subspace which is 1− paracompact in X but not collectionwise normal in X. Theorem Suppose that Y is s- regular in the space X. If Y is metacompact in X and strongly collectionwise normal in X then Y is paracompact in X.