4.7 Article

On Strengthened Inertial-Type Subgradient Extragradient Rule with Adaptive Step Sizes for Variational Inequalities and Fixed Points of Asymptotically Nonexpansive Mappings

Journal

MATHEMATICS
Volume 10, Issue 6, Pages -

Publisher

MDPI
DOI: 10.3390/math10060958

Keywords

strengthened inertial-type subgradient extragradient rules; adaptive step sizes; variational inequality problem; asymptotically nonexpansive mapping; Lipschitz continuity

Categories

Funding

  1. 2020 Shanghai Leading Talents Program of the Shanghai Municipal Human Resources and Social Security Bureau [20LJ2006100]
  2. Innovation Program of Shanghai Municipal Education Commission [15ZZ068]
  3. Program for Outstanding Academic Leaders in Shanghai City [15XD1503100]
  4. MOST Project in Taiwan [110-2410-H-037-001]
  5. NKUST [110KK002]
  6. KMU [110KK002]
  7. MOST [108-2115-M-039-005-MY3]

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In this paper, two strengthened inertial-type subgradient extragradient rules are proposed for solving the VIP and CFPP problems, with adaptive step sizes. The strong convergence of these rules to a common solution of the VIP and CFPP, which is the unique solution of a hierarchical variational inequality (HVI), is proved with suitable restrictions.
In a real Hilbert space, let the VIP denote a pseudomonotone variational inequality problem with Lipschitz continuity operator, and let the CFPP indicate a common fixed-point problem of finitely many nonexpansive mappings and an asymptotically nonexpansive mapping. On the basis of the Mann iteration method, the viscosity approximation method and the hybrid steepest-descent method, we propose and analyze two strengthened inertial-type subgradient extragradient rules with adaptive step sizes for solving the VIP and CFPP. With the help of suitable restrictions, we show the strong convergence of the suggested rules to a common solution of the VIP and CFPP, which is the unique solution of a hierarchical variational inequality (HVI).

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