An implicit method for finding common solutions of variational inequalities and systems of equilibrium problems and fixed points of infinite family of nonexpansive mappings

被引:46
作者
Colao, Vittorio [1 ]
Lopez-Acedo, Genaro [2 ]
Marino, Giuseppe [1 ]
机构
[1] Univ Calabria, Dept Math, Arcavacata Di Rende, Italy
[2] Univ Seville, Dept Math Anal, Seville, Spain
关键词
Equilibrium problem; Fixed point; Nonexpansive mapping; Variational inequality; Implicit method; Minimization problem; GENERAL ITERATIVE METHOD; APPROXIMATION; CONVERGENCE; ALGORITHMS; SET;
D O I
10.1016/j.na.2009.01.115
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let H be a Hilbert space. Consider on H a sequence of nonexpansive mappings {T-n} with common fixed points, a finite family of equilibrium functions {G(i)}(i=1,...,K), a contraction f with coefficient 0 < alpha < 1 and a strongly positive linear bounded operator A with coefficient (gamma) over bar > 0. Let 0 < gamma < (gamma) over bar/alpha. Assuming there are common equilibrium points of the family {G(i)}i=(1,...,K) which are also fixed points for {T-n}, we define a suitable sequence which strongly converges to the unique such point which also satisfies the variational inequality <(A - gamma f)x*, x - x*> >= 0 for all the x in the intersection of the equilibrium points and the common fixed points of the sequence {T-n}. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2708 / 2715
页数:8
相关论文
共 31 条
[1]   VARIATIONAL INEQUALITIES, COMPLEMENTARITY PROBLEMS, AND DUALITY THEOREMS [J].
ALLEN, G .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 1977, 58 (01) :1-10
[2]   The approximation of fixed points of compositions of nonexpansive mappings in Hilbert space [J].
Bauschke, HH .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 1996, 202 (01) :150-159
[3]   Projection algorithms for solving convex feasibility problems [J].
Bauschke, HH ;
Borwein, JM .
SIAM REVIEW, 1996, 38 (03) :367-426
[4]   Generalized monotone bifunctions and equilibrium problems [J].
Bianchi, M ;
Schaible, S .
JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, 1996, 90 (01) :31-43
[5]  
Blum E., 1994, MATH STUDENT, V63, P123
[6]  
Brezis H., 1972, Boll. Un. Mat. Ital., V6, P293
[7]   CONSTRUCTION OF FIXED POINTS OF NONLINEAR MAPPINGS IN HILBERT SPACE [J].
BROWDER, FE ;
PETRYSHY.WV .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 1967, 20 (02) :197-&
[8]   An iterative method for finding common solutions of equilibrium and fixed point problems [J].
Colao, Vittorio ;
Marino, Giuseppe ;
Xu, Hong-Kun .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2008, 344 (01) :340-352
[9]  
Combettes P. L., 1995, P IEEE INT C IMAGE P, V2, P2025
[10]  
Combettes PL, 2005, J NONLINEAR CONVEX A, V6, P117