关于有效点存在定理的注记  

A NOTE ON THE EXISTENCE THEOREMFOR THE VALID POINT

作　　者：刘佳[1] 

机构地区：[1]山西大学数学系

出　　处：《山西大学学报（自然科学版）》1996年第4期374-376,共3页Journal of Shanxi University(Natural Science Edition)

摘　　要：文中指出Ｋ－半紧集与Ｋ仿紧集是等价的两个概念，并在Ｋ半拟紧的条件下证明了有效点的存在性，从而推广了文［２。In this paper, it is pointed out that the concept of K- semicompact set is equivalent to that of K- paracompactset, and a theeorem on the existence of the valid point is proved under the condition of K- semiquasi-compact, which is an extention to the related results in

关 键 词：K-半紧集 K-仿紧集 有效点 存在定理 

分 类 号：O189.11[理学—数学]