1) σ-point finite open expansion
σ-点有限开膨胀
2) σ-compact finite open expansion
σ-紧有限的开膨胀
3) σ-point finite open refinement
σ-点有限开加细
4) σ-point-finite
σ点有限
1.
By means of the concept of inductively compact-covering and weakly compact mappings introduced, we establish the relationship between spaces with a σ-point-finite cfp-network and metric spaces.
本文研究了度量空间的象,引进诱导紧覆盖弱紧映射,建立了具有σ点有限cfp网的空间与度量空间之间的联系,将完善"映射与空间"理论。
5) σ-expandability
σ-可膨胀
1.
Three theorems concerning the σ-collectionwise normal,σ-expandability, and σ-metaexpandability of σ-products are proved.
证明了三个关于σ－集体正规、σ－可膨胀和σ－亚可膨胀的σ－积定理。
6) σ-interior preserving of open expansions
σ内部保持开膨胀
补充资料：讨开点
1.方言。分得一点。
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