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Spaces with σ-locally Countable Weak Bases
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作者 夏省祥 《Chinese Quarterly Journal of Mathematics》 CSCD 2001年第2期37-41,共5页
In this paper, by msss_mappings, the relations between metric spaces and spaces with σ _locally countable cs_networks or spaces with σ _locally countable weak bases are established. These are some answers to A... In this paper, by msss_mappings, the relations between metric spaces and spaces with σ _locally countable cs_networks or spaces with σ _locally countable weak bases are established. These are some answers to Alexandroff’s problems. 展开更多
关键词 msss_mapping sequence_covering mapping cs_network weak base
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