Theorem 4.3 Let K be aσ-θ-complex with finite degree, K' is infinite compactification of K, then K' is S(n) - closed iff for each central filter point U ,N(U,2n-1)≥1.
定理4.3设K为度有限的σ-θ-复形,K'是K的无限远紧化,则K'是S(n)-闭的当且仅当对任意的中心滤子点u,有N(u,2n-1)≥1。
参考来源 - 一类拓扑空间σ·2,447,543篇论文数据,部分数据来源于NoteExpress
应用推荐