COUNTABLE-COMPACT-COVERING MAPS AND COMPACT-COVERING MAPS

被引:2
|
作者
CHO, MH [1 ]
JUST, W [1 ]
机构
[1] OHIO UNIV,DEPT MATH,ATHENS,OH 45701
基金
美国国家科学基金会;
关键词
COMPACT-COVERING MAPS; COUNTABLE-COMPACT-COVERING MAPS;
D O I
10.1016/0166-8641(94)90126-0
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We show that every countable-compact-covering map with compact fibers from a separable metric space X onto a first-countable, regular space Y is compact-covering. We also show that the assumption that f is countable-compact-covering cannot be replaced by a weaker condition.
引用
收藏
页码:127 / 143
页数:17
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