A NOTE ON SEQUENCE-COVERING π-IMAGES OF METRIC SPACES

被引:0
|
作者
Li, Zhaowen [1 ]
Xie, Tusheng [2 ]
机构
[1] Guangxi Univ Nationalities, Coll Math & Comp Sci, Nanning 530006, Guangxi, Peoples R China
[2] Guangxi Univ, Coll Math & Informat Sci, Nanning 530004, Guangxi, Peoples R China
来源
MATEMATICKI VESNIK | 2012年 / 64卷 / 04期
基金
中国国家自然科学基金;
关键词
Sequence-covering mappings; pi-mappings; cs-covers; sn-covers; sigma-strong networks; Cauchy sn-symmetric spaces;
D O I
暂无
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we prove that a space is a sequence-covering pi-image of a metric space if and only if it has a sigma-strong network consisting of cs-covers (or sn-covers) if and only if it is a Cauchy sn-symmetric space.
引用
收藏
页码:326 / 329
页数:4
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