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Modified inertial subgradient extragradient method for equilibrium problems

  • Lateef Olakunle Jolaoso , Yekini Shehu ORCID logo EMAIL logo and Regina N. Nwokoye
Published/Copyright: November 29, 2021

Abstract

The subgradient extragradient method with inertial extrapolation step x n + θ n (x n x n−1) (also known as inertial subgradient extragradient method) has been studied extensively in the literature for solving variational inequalities and equilibrium problems. Most of the inertial subgradient extragradient methods in the literature for both variational inequalities and equilibrium problems have not considered the special case when the inertial factor θ n = 1. The convergence results have always been obtained when the inertial factor θ n is assumed 0 ≤ θ n < 1. This paper considers the relaxed inertial version of subgradient extragradient method for equilibrium problems with 0 ≤ θ n ≤ 1. We give both weak and strong convergence results using this inertial subgradient extragradient method and also give some numerical illustrations.

Mathematics Subject Classification (2010): 90C33; 47J20

Corresponding author: Yekini Shehu, Department of Mathematics, Zhejiang Normal University, Jinhua, 321004, People’s Republic of China, E-mail:

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-03-10
Revised: 2021-07-26
Accepted: 2021-11-04
Published Online: 2021-11-29

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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