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相对Meso紧空间及相对Meso-Lindeloff空间

Relative Mesocompact Space and Relative Meso-Lindeloff Space
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摘要 定义了相对meso紧空间、相对meso-Lindeloff空间的概念,研究了相对meso紧、相对meso-Lindeloff空间在闭Lindeloff映射、完备映射下的性质. In this paper,the concepts of relative mesocompact space and relative mesoLindeloff space are defined.And some properties of them under closed-Lindeloff mapping and perfect mapping are discussed.
作者 刘德金
出处 《数学的实践与认识》 北大核心 2015年第19期248-253,共6页 Mathematics in Practice and Theory
关键词 Y在X中meso紧 Y在X中meso-Lindeloff 闭Lindeloff映射 完备映射 Y is meso-compact in X Y is meso-Lindeloff in X closed-Lindeloff mapping perfect mapping
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