1) almost second countable
几乎第二可数
2) almost first countable
几乎第一可数
3) almost countabilities
几乎可数性
1.
In this paper,we prove that almost quasi-Lindelf property can be preserved by almost homeomorphism mapping,and study the relation between the LF almost countabilities with the LF countabilities in a semiregular space.
本文讨论了几乎准Lindel f性质在映射作用下的某些性质和LF几乎可数性与LF可数性在半正则空间中的关系。
4) almost countable paracom pactness
几乎可数仿紧
5) almost countable sheaf paracompactn
几乎可数层仿紧
1.
By the base of almost countable F-compactness,sheaf paracompact hess and countable paracompactness in L-Fuzzy topological space,in this artical,counta ble sheaf paracompactness,almost countable paracompactness and almost countable sheaf paracompactness are investigated.
本文以L—Fuzzy拓扑空间中的几乎可数F紧性、层仿紧性以及可数仿紧性为基础,研究了L—Fuzzy拓扑空间中的可数层仿紧性、几乎可数仿紧性以及几乎可数层仿紧性。
6) nearly reducible
几乎可约
1.
In this paper we make research on the set NK of indices of convergence and the set NH n of indices of maximum density for the class of n×n symmetric imprimitive nearly reducible Boolean matrices.
本文完全确定出ｎ（＞２）阶对称非本原几乎可约布尔矩阵的幂敛指数集和最大密度指数集。
补充资料：第二可数公理
第二可数公理
second axiom of eountabifity
第二可数公理〔，泊田吐.愈肪of~恤性万ty;翻p阳昵“oMae二ocm] 集合论的拓扑学中的概念.拓扑空间满足第二可数公理(~nd~m of coulltab正ty)，如果它们具有可数基(h滔e).满足此公理的空间类是由F.Haus-do叮给出的.这个空间类包含了所有可分度量空间(见可分空间(sep盼ble space)).满足第二可数公理的所有正则空间(侧到ar sPace)都拓扑地含于E团比吐立方体(H讯芜rt Cul又)，因而是可度量化且可分的(n.C.yp卜I明).于是，对满足此公理的正则空间的研究导致对更具体的对象—Hdbert立方体的子空间的研究.基于这一事实，到山饮滋立方体具有明显的拓扑重要性.具有可数基的有限维空间允许更进一步的具体化. B.3.Illall户治eK戒撰
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参考词条