1) countable base-mesocompact mapping
基-可数中紧映射
1.
The notion of countable base-mesocompact mapping is introduced and the following results are mainly proved:(i) Let f ∶X→Y be countable base-mesocompact mapping.
引入了基-可数中紧映射,并且获得了如下主要结果:(i)设X,Y为T2空间,ω(X)≥ω(Y),f∶X→Y是基-可数中紧映射,如果Y是正则的基-可数中紧空间,那么X是基-可数中紧空间。
2) countably mesocompact mapping
可数中紧映射
1.
The paper lead into mesocompact mapping and define countably mesocompact mapping.
本文引入并较为系统地研究了中紧映射和可数中紧映射,全文共分两章:第一章是中紧映射。
3) base-mesocompact mapping
基中紧映射
1.
It is investigated that base-metacompactness and base-mesocompactness are inversely preserved under perfect mapping,closed Lindelf mapping,base-paracompact mapping,base-metacompact mapping and base-mesocompact mapping.
引入了基亚(中)紧空间和基亚(中)紧映射的概念,并研究了完备映射、闭Lindel f映射、基仿紧映射、基亚紧映射、基中紧映射对基亚紧性和基中紧性的保持问题。
4) Countably subparacompact maps
可数次仿紧映射
5) Countably metacompact maps
可数亚紧映射
6) Countably submetacompact maps
可数次亚紧映射
补充资料:数中
1.其中;内中。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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