Abstract
In this paper, we propose a new general iterative scheme based on the viscosity approximation method for finding a common element of the set of solutions of the generalized mixed equilibrium problem and the set of all common fixed points of a finite family of nonexpansive semigroups. Then, we prove the strong convergence of the iterative scheme to find a unique solution of the variational inequality that is the optimality condition for the minimization problem. Our results extend and improve some recent results of Cianciaruso et al. (J. Optim. Theory Appl. 146:491–509, 2010), Kamraksa and Wangkeeree (J. Glob. Optim. 51:689–714, 2011), and many others.
Similar content being viewed by others
References
Bauschke HH, Borwein JM (1996) On projection algorithms for solving convex feasibility problems. SIAM Rev 38:367–426
Blum E, Oettli W (1994) From optimization and variational inequalities to equilibrium problems. Math Stud 63:123–145
Browder FE (1956) Nonexpansive nonlinear operators in a Banach space. Proc Natl Acad Sci USA 54:1041–1044
Butnariu D, Censor Y, Gurfil P, Hadar E (2008) On the behavior of subgradient projections methods for convex feasibility problems in Euclidean spaces. SIAM J Optim 19:786–807
Ceng LC, Hadjisavvas N, Wong NC (2010) Strong convergence theorem by hybrid extragradient-like approximation method for variational inequalities and fixed point problems. J Glob Optim 46:635–646
Cianciaruso F, Marino G, Muglia L (2010) Iterative methods for equilibrium and fixed point problems for nonexpansive semigroups in Hilbert spaces. J Optim Theory Appl 146:491–509
Combettes PL, Hirstoaga SA (2005) Equilibrium programming in Hilbert spaces. J Nonlinear Convex Anal 6:117–136
Eslamian M, Abkar A (2012) Strong convergence of a multi-step iterative process for relatively quasi-nonexpansive multivalued mappings and equilibrium problem in Banach spaces. Sci Bull, Ser A 74(4)
Kamraksa U, Wangkeeree R (2011) Generalized equilibrium problems and fixed point problems for nonexpansive semigroups in Hilbert spaces. J Glob Optim 51:689–714
Li S, Li L, Su Y (2009) General iterative methods for a one-parameter nonexpansive semigroup in Hilbert space. Nonlinear Anal 70:3065–3071
Mainge PE (2008) Strong convergence of projected subgradient methods for nonsmooth and nonstrictly convex minimization. Set-Valued Anal 16:899–912
Marino G, Xu HK (2006) A general iterative method for nonexpansive mappings in Hilbert spaces. J Math Anal Appl 318:43–52
Moudafi A (2000) Viscosity approximation methods for fixed-point problems. J Math Anal Appl 241:46–55
Plubtieg S, Punpaeng R (2007) A general iterative method for equilibrium problems and fixed point problems in Hilbert spaces. J Math Anal Appl 336:455–469
Podilchuk CI, Mammone RJ (1990) Image recovery by convex projections using a least-squares constraint. J Opt Soc Am A 7:517–521
Qin X, Cho SY, Kang SM, Gu F (2011) On the hybrid projection method for fixed point and equilibrium problems. Top. doi:10.1007/s11750-011-0190-z
Saejung S (2008) Strong convergence theorems for nonexpansive semigroups without Bochner integrals. Fixed Point Theory Appl 745010, 7 pages
Shioji N, Takahashi W (1998) Strong convergence theorems for asymptotically nonexpansive semigroups in Hilbert spaces. Nonlinear Anal 34:87–99
Suzuki T (2003) On strong convergence to common fixed points of nonexpansive semigroups in Hilbert spaces. Proc Am Math Soc 131:2133–2136
Tada A, Takahashi W (2007) Weak and strong convergence theorems for a nonexpansive mapping and an equilibrium problem. J Optim Theory Appl 133:359–370
Takahashi S, Takahashi W (2007) Viscosity approximation methods for equilibrium problems and fixed point problems in Hilbert spaces. J Math Anal Appl 331:506–515
Xu HK (2003) An iterative approach to quadratic optimization. J Optim Theory Appl 116:659–678
Yang L, Zhao F, Kim Jk (2012) Hybrid projection method for generalized mixed equilibrium problem and fixed point problem of infinite family of asymptotically quasi ϕ-nonexpansive mappings in Banach spaces. Appl Math Comput 218:6072–6082
Zegeye H, Shahzad N (2011) Convergence of Manns type iteration method for generalized asymptotically nonexpansive mappings. Comput Math Appl 62:4007–4014
Zhang SS (2009) Generalized mixed equilibrium problem in Banach spaces. Appl Math Mech 30:1105–1112
Acknowledgements
Research of the second author was supported in part by a grant no. 751164-1392 from Imam Khomeini International University.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Eslamian, M., Abkar, A. Viscosity iterative scheme for generalized mixed equilibrium problems and nonexpansive semigroups. TOP 22, 554–570 (2014). https://doi.org/10.1007/s11750-012-0270-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11750-012-0270-8
Keywords
- Nonexpansive semigroup
- Generalized mixed equilibrium problem
- Fixed point
- Viscosity approximation method