1) hereditarily normal weakly submetacompact
遗传正规弱次亚紧
2) normal and weakly submetacompact
正规弱次亚紧
1.
The following resutls are proved: Assume that X= lim ←｛x\-σ, π σ ρ, Λ｝, ｜Λ｜=λ , and the projection π σ: XX\-σ is an open and onto mapping for every σ∈Λ , if X is λ -Paracompact and every X\-σ is normal and weakly submetacompact, the X is normal and weakly submetacompact.
证明了 :若X =lim← {Xσ,πσρ,Λ} ,|Λ|=λ ,并且每个映射πσ:XXσ 是开满射 ,那么若X是λ 仿紧的 ,并且每个Xσ 是正规弱次亚紧空间 ,则X是正规弱次亚紧空间 。
3) hereditarily submetacompact
遗传次亚紧
1.
The author mainly obtained the following two theorems: (1)Let X=σ{x α:α∈A},if every finite subproduct of X is strong submetacompact, then X is strong submetacompact; (2) Let X=σ{x α:α∈A}, if every finite subproduct of X is heredifarily submetacompact and X normal, then X is hereditarily submetacompact.
主要获得如下两个定理：（１）设Ｘ＝σ｛Ｘα：α∈Ａ｝，如果Ｘ的每个有限子积是强次亚紧的，则Ｘ是强次亚紧的；（２）设Ｘ＝σ｛Ｘα：α∈Ａ｝，如果Ｘ的每个有限子积是遗传次亚紧的且Ｘ正规，则Ｘ是遗传次亚紧的。
2.
In this paper,we show the result:A space X is a hereditarily submetacompact space if and only if every scattered partition of X has a θ-sequence of open expansions.
本文获得如下结果：（＊）Ｘ是遗传次亚紧空间当且仅当Ｘ的每个散射分解有个开的θ－膨胀序列。
4) Hereditarily normal weak-refinable
遗传正规弱-可加
5) hereditarily collectionwise subnormality
遗传集体次正规
6) hereditarily weakly suborthocompact
遗传弱Subortho-紧
补充资料：-[次甲基-三(亚苯氧基亚甲基)]三(环氧乙烷)
CAS：66072-38-6
分子式：C28H28O6
中文名称：2,2',2"-[次甲基-三(亚苯氧基亚甲基)]三(环氧乙烷)
英文名称：2,2',2''-[methylidyne tris(phenyleneoxymethylene)]tris-oxirane
triphenylolmethane triglycidyl ether
分子式：C28H28O6
中文名称：2,2',2"-[次甲基-三(亚苯氧基亚甲基)]三(环氧乙烷)
英文名称：2,2',2''-[methylidyne tris(phenyleneoxymethylene)]tris-oxirane
triphenylolmethane triglycidyl ether
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条