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arXiv 1507.06362math.GNmath.GR
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Charming空间的若干拓扑性质

Some topological properties of Charming spaces

Xiaoting Li, Fucai Lin, Shou Lin

摘要:

本文主要讨论A. V. Arhangel'skii在[Remainers of Metrizable Spaces and a Generalization of Lindelöf $Σ$ -spaces,Fund. Math.,215(2011),87-100]。首先证明了存在一个魅力空间$X$使得$X^{2}$不是魅力空间.然后讨论了魅力空间的一些性质,并给出了一类魅力空间的一些刻画。最后证明了任意迷人可求长空间$G$的Suslin数是可数的.

英文摘要:

In this paper, we mainly discuss the class of charming spaces, which was introduced by A.V. Arhangel'skii in [Remainders of metrizable spaces and a generalization of Lindelöf $Σ$-spaces, Fund. Math., 215(2011), 87-100]. First, we show that there exists a charming space $X$ such that $X^{2}$ is not a charming space. Then we discuss some properties of charming spaces and give some characterizations of some class of charming spaces. Finally, we show that the Suslin number of an arbitrary charming rectifiable space $G$ is countable.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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