Weakly KKM Map, Intersection Theorems and Minimax Inequalities on Abstract Convex Spaces
Received:November 11, 2008  Revised:January 05, 2009
Key Words: abstract convex space   map class ${\frak{K}}$   ${\frak{KC}}$   ${\frak{KO}}$   weakly KKM map   matching theorem.  
Fund Project:Supported by the National Natural Science Foundation of China (Grant No.10361005).
Author NameAffiliation
Yong Jie PIAO Department of Mathematics, Yanbian University, Jilin 133002, P. R. China 
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Abstract:
      In this paper, we introduce the concept of weakly KKM map on an abstract convex space without any topology and linear structure, and obtain Fan's matching theorem and intersection theorem under very weak assumptions on abstract convex spaces. Finally, we give several minimax inequality theorems as applications. These results generalize and improve many known results in recent literature.
Citation:
DOI:10.3770/j.issn:1000-341X.2010.06.019
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