KKM Type Theorems and Coincidence Theorems in Topological Spaces
Received:December 09, 2005  Revised:October 28, 2007
Key Words: $FC$-space   KKM type theorem   coincidence theorem   admissible set-valued map   compactly local intersection property.  
Fund Project:the Natural Science Foundation of Sichuan Provincial Education Department of China (No.2003A081; SZD0406)
Author NameAffiliation
ZHENG Lian Department of Mathematics, Yangtze Normal University, Chongqing 408100, China 
DING Xie Ping Department of Mathematics, Sichuan Normal University, Sichuan 610066, China 
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Abstract:
      A class of finitely continuous topological spaces (in short, $FC$-spaces) is introduced. Some new KKM type theorems and coincidence theorems involving admissible set-valued mappings and the set-valued mapping with compactly local intersection property are proved in $FC$-spaces. As applications, some new fixed point theorems are obtained in FC-spaces. These theorems improve and generalize many known results in recent literature.
Citation:
DOI:10.3770/j.issn:1000-341X.2008.02.022
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