Results 81 to 90 of about 4,368,964 (211)

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

Existence Results for System of Variational Inequality Problems with Semimonotone Operators

open access: yesJournal of Inequalities and Applications, 2010
We introduce the system of variational inequality problems for semimonotone operators in reflexive Banach space. Using the Kakutani-Fan-Glicksberg fixed point theorem, we obtain some existence results for system of variational inequality problems for ...
Plubtieng Somyot, Sombut Kamonrat
doaj  

Variational inequalities

open access: yes, 2015
If $- \infty < < < \infty $ and $f \in C^{3} \left( [ , ] \times {\bf R}^{2} , {\bf R} \right) $ is bounded, while $y \in C^{2} \left( [ , ] , {\bf R} \right) $ solves the typical one-dimensional problem of the calculus of variations to minimize the function $$F \left( y \right) = \int_{ }^{ }f \left( x, y(x), y'(x) \right) dx,$
openaire   +2 more sources

Variational inequalities, coincidence theory, and minimax inequalities

open access: yesApplied Mathematics Letters, 2001
New fixed-point theorems in Frechet spaces are used to establish new variational inequalities, coincidence results, analytic alternatives, and minimax inequalities.
Agarwal, R.P., O'Regan, D.
openaire   +2 more sources

On Solvability of a Generalized Nonlinear Variational-Like Inequality

open access: yesJournal of Inequalities and Applications, 2009
A new generalized nonlinear variational-like inequality is introduced and studied. By applying the auxiliary principle technique and KKM theory, we construct a new iterative algorithm for solving the generalized nonlinear variational-like inequality. By
Ume JeongSheok   +3 more
doaj  

Well-Posedness by Perturbations for Variational-Hemivariational Inequalities

open access: yesJournal of Applied Mathematics, 2012
We generalize the concept of well-posedness by perturbations for optimization problem to a class of variational-hemivariational inequalities. We establish some metric characterizations of the well-posedness by perturbations for the variational ...
Shu Lv   +3 more
doaj   +1 more source

Allen-Cahn and Cahn-Hilliard variational inequalities solved with Optimization Techniques [PDF]

open access: yes, 2010
Parabolic variational inequalities of Allen-Cahn and Cahn- Hilliard type are solved using methods involving constrained optimization. Time discrete variants are formulated with the help of Lagrange multipliers for local and non-local equality and ...
Blank, Luise   +4 more
core  

Multi-Valued Parabolic Variational Inequalities and Related Variational-Hemivariational Inequalities

open access: yesAdvanced Nonlinear Studies, 2014
Abstract In this paper we study multi-valued parabolic variational inequalities involving quasilinear parabolic operators, and multi-valued integral terms over the underlying parabolic cylinder as well as over parts of the lateral parabolic boundary, where the multi-valued functions involved are assumed to be upper semicontinuous only ...
Carl, Siegfried, Le, Vy Khoi
openaire   +3 more sources

On solvability of general nonlinear variational-like inequalities in reflexive Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We introduce and study a new class of general nonlinear variational-like inequalities in reflexive Banach spaces. By applying a minimax inequality, we establish two existence and uniqueness theorems of solutions for the general nonlinear variational-like
Zeqing Liu   +3 more
doaj   +1 more source

Optimal control of unilateral obstacle problem with a source term

open access: yes, 2008
We consider an optimal control problem for the obstacle problem with an elliptic variational inequality. The obstacle function which is the control function is assumed in $H^{2}$. We use an approximate technique to introduce a family of problems governed
Ghanem, Radouen
core  

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