The ideal generated by σ-nowhere dense sets

[EN] In this paper, we consider the ideal Iσ generated by all σ-nowhere dense sets in a topological space. Properties of this ideal and its relations with the Volterra property are explored. We show that Iσ is compatible with the topology for any given topological space, an analogue to the Banach ca...

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Detalles Bibliográficos
Autores: Cao, Jiling, Greenwood, Sina
Tipo de recurso: artículo
Fecha de publicación:2006
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:10251/83049
Acceso en línea:https://riunet.upv.es/handle/10251/83049
Access Level:acceso abierto
Palabra clave:Compatible
Ideal
Resolvable
σ-nowhere dense
Volterra
Weakly Volterra
Descripción
Sumario:[EN] In this paper, we consider the ideal Iσ generated by all σ-nowhere dense sets in a topological space. Properties of this ideal and its relations with the Volterra property are explored. We show that Iσ is compatible with the topology for any given topological space, an analogue to the Banach category theorem. Some applications of this result and the Banach category theorem are also given.