仿近似紧空间的一些刻划

Some Characterizations on Para-nearly-compact Spaces

本文作出仿近似紧空间的某些刻划,例如,正则空间X是仿近似紧的充分必要条件是X的每个正则开复盖有一个垫状正则闭加细。等。

In this paper we give some characterizations on para—nearly—compact spaces. For example, a regular space X is para—nearly—compact iff every regularly open cover of X has a cushioned regular closed refinement,etc.