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.
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页码：77 / 83
页数：7
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