Strong Convergence Theorems by an Extragradient Method for Solving Variational Inequalities and Equilibrium Problems in a Hilbert Space

Authors

POOM KUMAM

DOI

10.3906/mat-0804-11

Abstract

In this paper, we introduce an iterative process for finding the common element of the set of fixed points of a nonexpansive mapping, the set of solutions of an equilibrium problem and the set of solutions of the variational inequality for monotone, Lipschitz-continuous mappings. The iterative process is based on the so-called extragradient method. We show that the sequence converges strongly to a common element of the above three sets under some parametric controlling conditions. This main theorem extends a recent result of Yao, Liou and Yao [Y. Yao, Y. C. Liou and J.-C. Yao, ''An Extragradient Method for Fixed Point Problems and Variational Inequality Problems,'' Journal of Inequalities and Applications Volume 2007, Article ID 38752, 12 pages doi:10.1155/2007/38752] and many others.

Keywords

Nonexpansive mapping; Equilibrium problem; Fixed point; Lipschitz-continuous mappings; Variational inequality; Extragradient method

First Page

85

Last Page

98

Recommended Citation

KUMAM, POOM (2009) "Strong Convergence Theorems by an Extragradient Method for Solving Variational Inequalities and Equilibrium Problems in a Hilbert Space," Turkish Journal of Mathematics: Vol. 33: No. 1, Article 9. https://doi.org/10.3906/mat-0804-11
Available at: https://journals.tubitak.gov.tr/math/vol33/iss1/9