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作 者:Erguang YANG
机构地区:[1]School of Mathematics&Physics,Anhui University of Technology,Anhui 243032,P.R.China
出 处:《Journal of Mathematical Research with Applications》2021年第4期416-424,共9页数学研究及应用(英文版)
摘 要:This paper is a continuation of[Erguang YANG.On some generalized countably compact spaces.J.Math.Res.Appl.,2019,39(5):540–550]in which characterizations of some generalized countably compact spaces such as quasi-γspaces,quasi-Nagata spaces,wN-spaces and wM-spaces in terms of real-valued functions were obtained.In this paper,we shall present some other forms of characterizations of the spaces mentioned above.
关 键 词:real-valued functions semi-continuity g-functions quasi-γspaces wγ-spaces quasi-Nagata spaces wN-spaces M^(#)-spaces wM-spaces
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