On the product of relatively weakly almost Lindelof subsets

被引：0
|
作者：
Song, Y. K. [1 ]
机构：
[1] Nanjing Normal Univ, Dept Math, Nanjing 210097, Peoples R China
来源：
ACTA MATHEMATICA HUNGARICA | 2007年 / 115卷 / 04期
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
Lindelof; relative Lindelof; almost Lindelof;
D O I：
10.1007/s10474-007-5254-z
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
The purpose of this note is to show that there exist two Tychonoff spaces X, Y, a subset A of X and a subset B of Y such that A is weakly almost Lindelof in X and B is weakly almost Lindelof in Y, but A x B is not weakly almost Lindelof in X x Y.
引用
收藏
页码：315 / 318
页数：4
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