continuous closed mapping [数] 连续闭映射
f-closed mapping f闭映射
semi-closed mapping 半闭映射
demi-closed mapping 次闭映射
point closed mapping 点闭映射
Theorem 3 closed mapping preserve the space with a- hereditarily closure-preserving pair-networks.
闭离散空间且除有限个a外，X。 是单点集.(定理2.2.7)定理3闭映射保持具有。
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The concepts of strong PS-irresolute open mapping and strong PS-irresolute closed mapping are introduced in L-spaces and their properties are researched.
给出了强ps -不定开映射和强ps -不定闭映射的概念，并且讨论了它们的一些性质。
Deepen the open mapping theorem, define the closed mapping and the weakly closed mapping under untithesis, and also discuss some of their related properties.
深化算子的开映射定理，对偶地定义了算子的闭映射与弱闭映射，并讨论了相关的若干性质。
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