Abstract
The purpose of this paper is to introduce the concept of generalized KKM mapping and to obtain some general version of the famous KKM theorem and Ky Fan's minimax inequality. As applications, we utilize the results presented in this paper to study the saddle point problem and the existence problem of solutions for a class of quasi-variational inequalities. The results obtained in this paper extend and improve some recent results of [1–6].
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References
Yeh, C.L., A minimax inequalities and its applications to variational inequalities,Pacific J. Math.,97 (1981), 477–480.
Shin, M.H. and K.K. Tan, Generalized quasi-variational inequalities in L.C.S.,J. Math. Anal. Appl.,108 (1985), 333–343.
Zhou, J. X. and G. Chen, Diagonal convexity conditions for problems in convex analysis and quasi-variational inequalities,J. Math. Anal. Appl.,132 (1988), 213–223.
Bardaro, C. and R. Ceppitelli, Some further generalizations of Knaster-Kuratowski-Mazurkiewcz theorem and minimax inequalities,J. Math. Anal. Appl.,132 (1988), 484–490.
Aubin, J.P., and I. Ekeland,Applied Nonlinear Analysis, New York. Wiley-Interscience Publication (1984).
Lassonde, M., On the use of KKM multifunctions in fixed point theory and related topics,J. Math. Anal. Appl.,97 (1985), 151–201.
Zhang Shi-sheng and Shu Yong-lu, Variational inequalities of multivalued mappings and its applications to nonlinear programming and the saddle problem,Acta of Applied Math. (to be published).
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The project supported by National Natur. Sci. Found. of China
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Shi-Sheng, Z., Gan-Shan, Y. Some further generalizations of Ky Fan's minimax inequality and its applications to variational inequalities. Appl Math Mech 11, 1027–1034 (1990). https://doi.org/10.1007/BF02015686
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DOI: https://doi.org/10.1007/BF02015686