The ideal generated by σ-nowhere dense sets

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 categor...

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Main Authors: Jiling Cao, Sina Greenwood
Format: Article
Language:English
Published: Universitat Politècnica de València 2006-10-01
Series:Applied General Topology
Subjects:
Online Access:http://polipapers.upv.es/index.php/AGT/article/view/1928
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spelling doaj-1d73e088269d4bccabfba608e77421f92020-11-24T23:47:37ZengUniversitat Politècnica de ValènciaApplied General Topology1576-94021989-41472006-10-017225326410.4995/agt.2006.19281553The ideal generated by σ-nowhere dense setsJiling Cao0Sina Greenwood1University of AucklandUniversity of AucklandIn 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.http://polipapers.upv.es/index.php/AGT/article/view/1928CompatibleIdealResolvableσ-nowhere denseVolterraWeakly Volterra
collection DOAJ
language English
format Article
sources DOAJ
author Jiling Cao
Sina Greenwood
spellingShingle Jiling Cao
Sina Greenwood
The ideal generated by σ-nowhere dense sets
Applied General Topology
Compatible
Ideal
Resolvable
σ-nowhere dense
Volterra
Weakly Volterra
author_facet Jiling Cao
Sina Greenwood
author_sort Jiling Cao
title The ideal generated by σ-nowhere dense sets
title_short The ideal generated by σ-nowhere dense sets
title_full The ideal generated by σ-nowhere dense sets
title_fullStr The ideal generated by σ-nowhere dense sets
title_full_unstemmed The ideal generated by σ-nowhere dense sets
title_sort ideal generated by σ-nowhere dense sets
publisher Universitat Politècnica de València
series Applied General Topology
issn 1576-9402
1989-4147
publishDate 2006-10-01
description 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.
topic Compatible
Ideal
Resolvable
σ-nowhere dense
Volterra
Weakly Volterra
url http://polipapers.upv.es/index.php/AGT/article/view/1928
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AT sinagreenwood theidealgeneratedbysnowheredensesets
AT jilingcao idealgeneratedbysnowheredensesets
AT sinagreenwood idealgeneratedbysnowheredensesets
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