A Countable Intersection Like Characterization of Star-Lindelöf Spaces

Q4 Mathematics
P. Bal
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引用次数: 0

Abstract

There have been various studies on star-Lindelöfness but they always explain it in terms of open coverings. So, we have demonstrated in this study a connection between star-Lindelöfness and the family of closed sets that resembles countable intersection property of Lindelöf space. We show that a topological space $X$ is star-Lindelöf if and only if every closed subset's family of $X$ not having the modified non-countable intersection property have non-empty intersection.
星-林德洛夫空间的可数交集特征
关于星-林德罗夫性的研究有很多,但他们总是从开放覆盖的角度来解释它。因此,我们在本研究中证明了星形林德罗夫性与封闭集族之间的联系,而封闭集族与林德罗夫空间的可数交集属性相似。我们证明,当且仅当 $X$ 的每个不具有修正的非可数交集属性的封闭子集族都具有非空交集时,拓扑空间 $X$ 才是星形林德洛夫空间。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
0.50
自引率
0.00%
发文量
8
审稿时长
16 weeks
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