摘要
本文以度量化定理的现代发展为脉络,综述了近十年来有关点离散集族的主要研究成果,重点介绍具有σ点离散基的空间和具有各种σ点离散网络的空间类,以及它们与具有各种σ紧有限网络的空问类之间的关系.
Based on the modern development of Metrization theorem for context, the main results obtained in recent ten years on point-discrete families are summarized. This paper mainly introduces the theory of the spaces with a-point-discrete bases, the spaces with certain a-point- discrete networks, and the relationship between the above spaces and the spaces with certain a-compact-finite networks.
出处
《数学进展》
CSCD
北大核心
2015年第4期481-491,共11页
Advances in Mathematics(China)
基金
国家自然科学基金(No.11471153
No.11201414)
江苏省自然科学基金(No.BK20140583)
关键词
点离散集族
紧有限集族
广义度量空间
K网
弱基
point-discrete families
compact-finite families
generalized metrizable spaces
k-networks
weak bases