...空间的刻画_stmopen 关键词】: 弱开映射 g-第二可数 g-第可数 弱基 s-映射和强s-映射 [gap=346]Keywords】: weak open mapping, g-second countable, g-first countable, weak base, s-mapping and strong s-mappi..
基于6个网页-相关网页
In the second section of this article ,we investigate weak open mappings have the relations with other mappings and prove that the finite-to-one weak open mappings preserve g-first countable, spaces and weak open closed mapping preserve g-metrizable spaces.
本文在第二节研究了弱开映射与序列商映射，几乎开映射的关系，证明了有限到一的弱开映射保持g-第一可数空间；弱开闭映射保持g-度量空间。
参考来源 - 几类空间在映射下的不变性·2,447,543篇论文数据，部分数据来源于NoteExpress
应用推荐