SOME REMARKS ON ALMOST LINDELOF SPACES AND WEAKLY LINDELOF SPACES

被引：0
|
作者：
Song, Yan-Kui [1 ]
Zhang, Yun-Yun [1 ]
机构：
[1] Nanjing Normal Univ, Inst Math, Sch Math & Comp Sci, Nanjing 210097, Jiangsu, Peoples R China
来源：
MATEMATICKI VESNIK | 2010年 / 62卷 / 01期
基金：
美国国家科学基金会;
关键词：
Lindelof; almost Lindelof; weakly Lindelof;
D O I：
暂无
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
A space X is almost Lindelof (weakly Lindelof) if for every open cover u of X, there exists a countable subset V of u such that & Unknown;{(V) over bar : V Epsilon V} = X (respectively, & Unknown; = X). In this paper, we investigate the relationships among almost Lindelof spaces, weakly Lindelof spaces and Lindelof spaces, and also study topological properties of almost Lindelof spaces and weakly Lindelof spaces.
引用
收藏
页码：77 / 83
页数：7
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