1) countable compactness
可数紧性
1.
In this paper, the concepts of twelve countable compactness in symmetric topological molecular lattices are introduced.
在对称拓扑分子格中引入12种可数紧性的概念,着重指出了它们在极不连通的对称拓扑分子格中的内在联系。
2) fuzzy countable compactness
fuzzy可数紧性
3) P-F countable compact
P-F可数紧性
4) strong fuzzy countable compactness
强F可数紧性
5) SR strong fuzzy countable compactness
SR强F可数紧性
1.
SR strong fuzzy countable compactness is introduced in L-topological,and its characterizations with α-finite intersection and cover are given.
在L-拓扑空间中引入SR强F可数紧性,给出了其α-有限交式、覆盖式等刻划。
6) Countable
可数
1.
In this paper,we discuss when f(x) is a real valued function on E(ER 1),the sets of various discontinuous points of f(x) is or not is countable;when f(x) is semi continuous function,discontinuous points of f(x) is or not is countable.
给出当 f(x)是 E(E R1)上的实值有界半连续函数时 ,f(x)的不连续点是至多可数的 ,从而当 f(x)为强半连续函数时 ,则 f(x)取至多可数值。
参考词条
补充资料：可数紧空间
可数紧空间
countably - compact: space
可数紧空间{阴ntably一~padsP拟;一~-毗盯拼犯l脚叫犯1.01 一个拓扑空间从其任意可数开覆盖中均可选出有限子覆盖.M”.BOmlcx。‘KH认撰[补注1
说明：补充资料仅用于学习参考，请勿用于其它任何用途。