Projected Subgradient Algorithms for Pseudomonotone Equilibrium Problems and Fixed Points of Pseudocontractive Operators

Yonghong Yao, Naseer Shahzad and Jen-Chih Yao
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Yonghong Yao: School of Mathematical Sciences, Tiangong University, Tianjin 300387, China
Naseer Shahzad: Department of Mathematics, King Abdulaziz University, P. O. B. 80203, Jeddah 21589, Saudi Arabia
Jen-Chih Yao: Center for General Education, China Medical University, Taichung 40402, Taiwan

Mathematics, 2020, vol. 8, issue 4, 1-15

Abstract: The projected subgradient algorithms can be considered as an improvement of the projected algorithms and the subgradient algorithms for the equilibrium problems of the class of monotone and Lipschitz continuous operators. In this paper, we present and analyze an iterative algorithm for finding a common element of the fixed point of pseudocontractive operators and the pseudomonotone equilibrium problem in Hilbert spaces. The suggested iterative algorithm is based on the projected method and subgradient method with a linearsearch technique. We show the strong convergence result for the iterative sequence generated by this algorithm. Some applications are also included. Our result improves and extends some existing results in the literature.

Keywords: equilibrium problem; pseudomonotone; fixed point; pseudocontractive operators; subgradient (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2020
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