摘要
本文列举6个例子否定广义度量空间的6个问题,并且证明了闭映射保持具有σ-HCP伪基的空间.
This paper gives six counter examples which answer negatively six problems on gineralized metric spaces,and proves that spaces with a σ-HCP pseudobase are preserved by closed mappings.
出处
《数学研究》
CSCD
1995年第4期105-107,共3页
Journal of Mathematical Study
基金
福建省教委科学基金