关于半Menger和星半Menger空间的注记

Q4 Mathematics

Tatra Mountains Mathematical Publications Pub Date : 2022-11-01 DOI:10.2478/tmmp-2022-0003

G. Kumar, B. K.Tyagi

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引用次数: 0

摘要

摘要证明了一个极不连通S-仿紧-T2空间的性质半Menger，Menger，强星半Menger。我们证明了半Menger（几乎半Menger）空间的弱半连续（强θ-。给出了半Menger和星半Menger空间的刻画。

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Remarks on Semi-Menger and Star Semi-Menger Spaces

Abstract It is proved that for an extremally disconnected S-paracompact-T2 spaces the properties semi-Menger, Menger, strongly star semi-Menger, strongly star-Menger, star semi-Menger, star-Menger, almost semi-Menger, almost Menger, almost star semi-Menger, almost star-Menger are equivalent. We show that a weakly semi-continuous (strongly θ-semi-continuous) image of semi-Menger (almost semi-Menger) spaces is almost semi-Menger (semi-Menger), respectively. The characterizations of semi-Menger and star semi-Menger spaces are also provided.

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来源期刊

Tatra Mountains Mathematical Publications Mathematics-Mathematics (all)

CiteScore

1.00

自引率

0.00%

发文量