摘要
本文引进了双半连续映射的概念,并讨论了它的一些性质及其与同胚映射、半同胚映射的关系。
In this paper,we have studied some properties of bisemi-continuity in topolo- gical spaces and discussed relation between bi-semi-continuity and semi-homeomor- phism.
出处
《青海师范大学学报（自然科学版）》
1991年第4期16-19,共4页
Journal of Qinghai Normal University(Natural Science Edition)
关键词
半开集
半闭集
同胚
半同胚
半连续
双半连续
Semi-open set
Sere-closed set
Homeomorphism
Semihomeomorphism.Semi-continuous mapping
Bi-semi-continuous mapping
