Existence and algorithms for bilevel generalized mixed equilibrium problems in Banach spaces

Existence and algorithms for bilevel generalized mixed equilibrium problems in Banach spaces

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Article ID: iaor20124147
Volume: 53
Issue: 2
Start Page Number: 331
End Page Number: 346
Publication Date: Jun 2012
Journal: Journal of Global Optimization
Authors: , ,
Keywords: game theory
Abstract:

A new class of bilevel generalized mixed equilibrium problems involving set‐valued mappings is introduced and studied in Banach spaces. First, an auxiliary generalized mixed equilibrium problem (AGMEP) to compute the approximate solutions of the generalized mixed equilibrium problems (GMEP) and bilevel generalized mixed equilibrium problems (BGMEP) involving set‐valued mappings is introduced. By using a minimax inequality, the existence and uniqueness of solutions of the AGMEP is proved under quite mild conditions. By using auxiliary principle technique, new iterative algorithm to compute the approximate solutions of the GMEP and the BGMEP is suggested and analyzed. Strong convergence of the iterative sequences generated by the proposed algorithms is proved under quite mild assumptions. These results are new and generalize some recent results in this field.

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