摘要
本文在有限集上引入了上半拓扑,下半拓扑,余拓扑,单拓扑,自同余拓扑,拓扑阶等概念;并对它们的性质及相互关系给出了一系列结果(7个命题,3个定理).目的在于:以这些概念为基础对诸如“有限集上能生成多少个拓扑”之类的问题进行研究。
In this paper, we introduce some special topologies on a finite set (as below). We get and prove a series of results (7 statements and 3 theorems) on their properties, and relations among them.
出处
《云南师范大学学报(自然科学版)》
1991年第4期42-45,共4页
Journal of Yunnan Normal University:Natural Sciences Edition
关键词
有限集
上半拓扑
下半拓扑
余拓扑
Super-semitopology Inferior-semitopology Simpl topology Self-complement topology Topological order