SOME ITERATIVE METHODS FOR QUASI-EQUILIBRIUM PROBLEMS

Jean Jacques Strodiot, Nguyễn Thị Thu Vân, Nguyễn Văn Hiền

Abstract


In this paper we present two new extensions of Korpelevich's extragraclient method for solving the scalar Quasi-Equilibrium Problem (QEP) in Euclidean space. In both extensions we replace the second orthogonal projection in the correction step of the extragradient method by an Armijo linesearch adapted to (QEP). We show that in both extensions we obtain, under mild conditions and without a Lipschitz condition, the global convergence of our iterative methods for computing a quasi-equilibrium solution.


Keywords


Scalar Quasi-Equilibrium Problem; Extragradient method



DOI: http://dx.doi.org/10.37569/DalatUniversity.2.3.210(2012)

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Copyright (c) 2012 Jean Jacques Strodiot, Nguyễn Thị Thu Vân, Nguyễn Văn Hiền

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