Results 61 to 70 of about 681 (178)

Subgradient Extragradient Method for Finite Lipschitzian Demicontractions and Variational Inequality Problems in a Hilbert Space

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
In this research, the modified subgradient extragradient method and K‐mapping generated by a finite family of finite Lipschitzian demicontractions are introduced. Then, a strong convergence theorem for finding a common element of the common fixed point set of finite Lipschitzian demicontraction mappings and the common solution set of variational ...
Sarawut Suwannaut, Erhan Güler
wiley   +1 more source

An Extragradient Method for Fixed Point Problems and Variational Inequality Problems

open access: yesJournal of Inequalities and Applications, 2007
We present an extragradient method for fixed point problems and variational inequality problems. Using this method, we can find the common element of the set of fixed points of a nonexpansive mapping and the set of solutions of the variational inequality
Yonghong Yao   +2 more
doaj   +2 more sources

Implicit Relaxed and Hybrid Methods with Regularization for Minimization Problems and Asymptotically Strict Pseudocontractive Mappings in the Intermediate Sense

open access: yesAbstract and Applied Analysis, 2013
We first introduce an implicit relaxed method with regularization for finding a common element of the set of fixed points of an asymptotically strict pseudocontractive mapping S in the intermediate sense and the set of solutions of the minimization ...
Lu-Chuan Ceng   +2 more
doaj   +1 more source

A Modified Form of Inertial Viscosity Projection Methods for Variational Inequality and Fixed Point Problems

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
This paper aims to introduce an iterative algorithm based on an inertial technique that uses the minimum number of projections onto a nonempty, closed, and convex set. We show that the algorithm generates a sequence that converges strongly to the common solution of a variational inequality involving inverse strongly monotone mapping and fixed point ...
Watanjeet Singh   +2 more
wiley   +1 more source

An Enhanced Subgradient Extragradient Method for Fixed Points of Quasi-Nonexpansive Mappings Without Demi-Closedness

open access: yesMathematics
This research focuses on developing a novel approach to finding fixed points of quasi-nonexpansive mappings without relying on the demi-closedness condition, a common requirement in previous studies. The approach is based on the Subgradient Extragradient
Anchalee Sripattanet, Atid Kangtunyakarn
doaj   +1 more source

A Generalized Viscosity Inertial Projection and Contraction Method for Pseudomonotone Variational Inequality and Fixed Point Problems

open access: yesMathematics, 2020
We introduce a new projection and contraction method with inertial and self-adaptive techniques for solving variational inequalities and split common fixed point problems in real Hilbert spaces.
Lateef Olakunle Jolaoso, Maggie Aphane
doaj   +1 more source

A note on approximate accelerated forward-backward methods with absolute and relative errors, and possibly strongly convex objectives

open access: yesOpen Journal of Mathematical Optimization, 2022
In this short note, we provide a simple version of an accelerated forward-backward method (a.k.a. Nesterov’s accelerated proximal gradient method) possibly relying on approximate proximal operators and allowing to exploit strong convexity of the ...
Barré, Mathieu   +2 more
doaj   +1 more source

Mini-Extragradient Methods

open access: yes
The Extragradient (EG) method stands as a cornerstone algorithm for solving monotone nonlinear equations but faces two important unresolved challenges: (i) how to select stepsizes without relying on the global Lipschitz constant or expensive line-search procedures, and (ii) how to reduce the two full evaluations of the mapping required per iteration to
Liu, Xiaozhi, Xia, Yong
openaire   +2 more sources

Relative Lipschitzness in Extragradient Methods and a Direct Recipe for Acceleration

open access: yesCoRR, 2020
We show that standard extragradient methods (i.e. mirror prox and dual extrapolation) recover optimal accelerated rates for first-order minimization of smooth convex functions. To obtain this result we provide a fine-grained characterization of the convergence rates of extragradient methods for solving monotone variational inequalities in terms of a ...
Cohen, Michael B.   +2 more
openaire   +4 more sources

A new self-adaptive method for solving resolvent of sum of two monotone operators in Banach spaces

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2023
We introduce a Tseng extragradient method for solving monotone inclusion problem in Banach space. A strong convergence result of an Halpern inertial extrapolation method for solving the resolvent of sum of two monotone operators without the knowledge of ...
H. A. Abass, M. Aphane, O. K. Oyewole
doaj   +1 more source

Home - About - Disclaimer - Privacy