摘要
本文研究Ⅱ超仿紧的基本性质以及它与Ⅱ仿紧性的关系,得到了Ⅱ超仿紧性是闭遗传的、弱同胚不变的以及L─好的推广等结果。
The basic properties of Ⅱ ultra─paracompactness and the relations between Ⅱ ultra-paractness and Ⅱ paracompactness are discussed. Furthermore, the resulties that Ⅱultraparacompactnessis hereditary with respect to closed subsets,a weakly topological property and an L-goodextension are obtained.
出处
《宝鸡文理学院学报(自然科学版)》
CAS
1997年第2期1-4,共4页
Journal of Baoji University of Arts and Sciences(Natural Science Edition)
基金
陕西省教委专项科研基金
关键词
相关远域族
强局部有限
Ⅱ超仿紧性
拓扑
Relative R─neighborhood family Strong locally finite Ⅱ ultra─paracompactness