Generalized Vector Equilibrium Problems for Pseudomonotone Multivalued Bifunctions 1

M. Fakhar and J. Zafarani
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M. Fakhar: University of Isfahan
J. Zafarani: University of Isfahan

Journal of Optimization Theory and Applications, 2005, vol. 126, issue 1, No 7, 109-124

Abstract: Abstract In this paper, we apply a new version of the Brézis, Nirenberg, and Stampacchia theorem; we use pseudomonotonicity and some coercivity conditions to establish some existence result for a solution of generalized vector equilibrium problems for multivalued bifunctions. The proper quasiconvexity of multivalued bifunctions is introduced and existence theorems for generalized vector equilibrium problems related to multivalued mappings with the KKM property are obtained. The new results extend and modify various existence theorems for similar problems.

Keywords: KKM maps; generalized vector equilibrium problems; pseudomonotone multivalued bifunctions; vector variational problems; KKM properties (search for similar items in EconPapers)
Date: 2005
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DOI: 10.1007/s10957-005-2663-4

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