摘要
主要借助于紧覆盖映射、闭映射和商映射讨论了局部紧Lindelf空间的像空间,推导出具有某些特定性质的k系空间的一些刻画,引入强k系的概念给出了局部紧Lindelf空间和仿紧局部紧空间的一种新的等价刻画.
Some discussions on images of locally compact Lindelof spaces are presented by means of compact covering mappings, closed mappings, and quotient mappings, and some characterizations are given to the spaces with a kind of spaces with k system. In particular,it shows that several new necessary and sufficient conditions of locally compact Lindelof spaces and paracompat locally compat spaces can be proved in terms of giving the concept of strong k system.
出处
《纯粹数学与应用数学》
CSCD
北大核心
2007年第3期381-387,共7页
Pure and Applied Mathematics
关键词
紧覆盖映射
闭映射
商映射
k系
强k系
compact covering mapping ,closed mapping ,quotient mapping, k system ,strong k system