摘要
本文给出拓扑空间中半闭集概念,并讨论半闭集的有关性质.
This article gives us the idea of Semi—closed in Topo- logical Spaces,and discusses the characters of the Semi—closed.
关键词
拓扑空间
半闭集
闭包算子
内部算子
Topological Spaces
Semi—Closed
Closure Operator
Inteior operator
mathematics Departmen
