Absolutely strongly star-Hurewicz spaces

A space X is absolutely strongly star-Hurewicz if for each sequence (Un :n ∈ℕ/ of open covers of X and each dense subset D of X, there exists a sequence (Fn :n ∈ℕ/ of finite subsets of D such that for each x ∈X, x ∈St(Fn; Un) for all but finitely many n. In this paper, we investigate the relationshi...

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Main Author: Song Yan-Kui
Format: Article
Language:English
Published: De Gruyter 2015-01-01
Series:Open Mathematics
Subjects:
acc
Online Access:https://doi.org/10.1515/math-2015-0004
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spelling doaj-d7ab6abec0944723a82e8efab89647c22021-09-06T19:20:07ZengDe GruyterOpen Mathematics2391-54552015-01-0113110.1515/math-2015-0004math-2015-0004Absolutely strongly star-Hurewicz spacesSong Yan-Kui0Institute of Mathematics, School of Mathematical Science, Nanjing Normal University, Nanjing 210023, P.R. ChinaA space X is absolutely strongly star-Hurewicz if for each sequence (Un :n ∈ℕ/ of open covers of X and each dense subset D of X, there exists a sequence (Fn :n ∈ℕ/ of finite subsets of D such that for each x ∈X, x ∈St(Fn; Un) for all but finitely many n. In this paper, we investigate the relationships between absolutely strongly star-Hurewicz spaces and related spaces, and also study topological properties of absolutely strongly star-Hurewicz spaces.https://doi.org/10.1515/math-2015-0004selection principlesstarcompactaccstrongly star-mengerabsolutely strongly star-mengerstrongly star-hurewiczabsolutely strongly star-hurewiczalexandroff duplicate
collection DOAJ
language English
format Article
sources DOAJ
author Song Yan-Kui
spellingShingle Song Yan-Kui
Absolutely strongly star-Hurewicz spaces
Open Mathematics
selection principles
starcompact
acc
strongly star-menger
absolutely strongly star-menger
strongly star-hurewicz
absolutely strongly star-hurewicz
alexandroff duplicate
author_facet Song Yan-Kui
author_sort Song Yan-Kui
title Absolutely strongly star-Hurewicz spaces
title_short Absolutely strongly star-Hurewicz spaces
title_full Absolutely strongly star-Hurewicz spaces
title_fullStr Absolutely strongly star-Hurewicz spaces
title_full_unstemmed Absolutely strongly star-Hurewicz spaces
title_sort absolutely strongly star-hurewicz spaces
publisher De Gruyter
series Open Mathematics
issn 2391-5455
publishDate 2015-01-01
description A space X is absolutely strongly star-Hurewicz if for each sequence (Un :n ∈ℕ/ of open covers of X and each dense subset D of X, there exists a sequence (Fn :n ∈ℕ/ of finite subsets of D such that for each x ∈X, x ∈St(Fn; Un) for all but finitely many n. In this paper, we investigate the relationships between absolutely strongly star-Hurewicz spaces and related spaces, and also study topological properties of absolutely strongly star-Hurewicz spaces.
topic selection principles
starcompact
acc
strongly star-menger
absolutely strongly star-menger
strongly star-hurewicz
absolutely strongly star-hurewicz
alexandroff duplicate
url https://doi.org/10.1515/math-2015-0004
work_keys_str_mv AT songyankui absolutelystronglystarhurewiczspaces
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