近似紧空间与具有近似闭图的映射  

Nearly compact spaces and maps with nearly closed graph

作　　者：汪火云[1] 

机构地区：[1]广州大学理学院,广东广州510405

出　　处：《广州大学学报（自然科学版）》2003年第6期501-502,共2页Journal of Guangzhou University:Natural Science Edition

摘　　要：引进了具有近似闭图映射的概念,利用它刻画了近似紧空间的特征.T1 空间Y是近似紧的当且仅当对每一个完全正规的T2空间X及对每一个带有近似闭图的映射f:XY,f是几乎连续的.A concept of map with nearly closed graph was given in this paper.which a T-1~* space Y is nearly compact iff for any fully normal T-2 space X and any map with nearly closed graph f:XY, f is a almost continuous map is proved.

关 键 词：近似闭图的映射 近似紧空间 几乎连续映射 

分 类 号：O189.11[理学—数学]