Improved inertial projection and contraction method for solving pseudomonotone variational inequality problems

Abstract

Abstract The objective of this article is to solve pseudomonotone variational inequality problems in a real Hilbert space. We introduce an inertial algorithm with a new self-adaptive step size rule, which is based on the projection and contraction method. Only one step projection is used to design the proposed algorithm, and the strong convergence of the iterative sequence is obtained under some appropriate conditions. The main advantage of the algorithm is that the proof of convergence of the algorithm is implemented without the prior knowledge of the Lipschitz constant of cost operator. Numerical experiments are also put forward to support the analysis of the theorem and provide comparisons with related algorithms.

Keywords

• Variational inequality problem
• Inertial method
• Projection and contraction method
• Pseudomonotone mapping
• Self-adaptive technique