上半连续集值1-集压缩映射的不动点定理  

Fixed Point Theorems for Upper Semicontinuous Set-Valued 1-Set-Contractive Mapping

作　　者：魏曙光[1] 张谋[1] 

机构地区：[1]重庆大学数理学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2004年第9期64-66,75,共4页Journal of Chongqing University

摘　　要：由集值映射的拓扑度延拓理论,推导出了上半连续集值1-集压缩映射的拓扑度。研究了上半连续集值1-集压缩映射的不动点定理。According to the extensive theory of topological degree for set-valued mapping ,the authors derive the topological degree for upper semicontinuous set-valued 1-set-contractive mapping. With the topological degree, the fixed theorems for upper semicontinuous set-valued 1-set-contractive mapping is studied.

关 键 词：集值1-集压缩映射 不动点 上半连续 半紧 

分 类 号：O177[理学—数学]