Abstract
In this paper, we introduce a general iterative scheme based on the viscosity approximation method for finding a common element of the set of solutions of the equilibrium problem and the set of all fixed points of a demicontractive mapping and a generalized nonexpansive multivalued mapping. Then, we prove the strong convergence of the iterative scheme to find a unique solution of the variational inequality which is the optimality condition for the minimization problem. The main results presented in this paper extend various results existing in the current literature.
Similar content being viewed by others
References
Abkar A, Eslamian M (2012) Fixed point and convergence theorems for different classes of generalized nonexpansive mappings in CAT(0) spaces. Comput Math Appl 64:643–650
Blum E, Oettli W (1994) From optimization and variational inequalities to equilibrium problems. Math Stud 63:123–145
Combettes PL, Hirstoaga SA (2005) Equilibrium programming in Hilbert spaces. J Nonlinear Convex Anal 6:117–136
Dhompongsa S, Inthakon W, Takahashi W (2011) A weak convergence theorem for common fixed points of some generalized nonexpansive mappings and nonspreading mappings in a Hilbert space. Optimization 60:769–779
Dhompongsa S, Kaewkhao A, Panyanak B (2012) On Kirk strong convergence theorem for multivalued nonexpansive mappings on CAT(0) spaces. Nonlinear Anal 75:459–468
Dominguez Benavides T, Gavira B (2010) Does Kirk’s theorem hold for multivalued nonexpansive mappings. In: Fixed point theory and applications, vol 2010. Article ID 546761. doi:10.1155/2010/546761
Eslamian M (2013) Convergence theorems for nonspreading mappings and nonexpansive multivalued mappings and equilibrium problems. Optim Lett 7:547–557
Eslamian M, Abkar A (2013) Geodesic metric spaces and generalized nonexpansive multivalued mappings. Bull Iran Math Soc 39:993–1008
Eslamian M, Latif A (2013) General split feasibility problems in hilbert spaces. In: Abstract and Applied Analysis, vol 2013. Hindawi Publishing Corporation, Cairo. Article ID 805104
Flam SD, Antipin AS (1997) Equilibrium programming using proximal-link algolithms. Math Program 78:29–41
Garcia-Falset J, Llorens-Fuster E, Suzuki T (2011) Fixed point theory for a class of generalized nonexpansive mappings. J Math Anal Appl 375:185–195
Garcia-Falset J, Llorens-Fuster E, Moreno-Galvez E (2012) Fixed point theory for multivalued generalized nonexpansive mappings. Appl Anal Discret Math 6:265–286
Goebel K (1975) On a fixed point theorem for multivalued nonexpansive mappings. Ann Univ Mariae Curie-Sklodowska Sect A 29(1975):69–72
Hicks TL, Kubicek JR (1977) On the Mann iterative process in Hilbert spaces. J Math Anal Appl 59:498–504
Iemoto S, Takahashi W (2009) Approximating commom fixed points of nonexpansive mappings and nonspreading mappings in a Hilbert space. Nonlinear Anal 71:2080–2089
Kohsaka F, Takahashi W (2008) Fixed point theorems for a class of nonlinear mappings relate to maximal monotone operators in Banach spaces. Arch Math (Basel) 91:166–177
Kohsaka F, Takahashi W (2008) Existence and approximation of fixed points of firmly nonexpansive-type mappings in Banach spaces. SIAM J Optim 19:824–835
Latif A, Ceng LC, Ansari QH (2012) Multi-step hybrid viscosity method for systems of variational inequalities defined over sets of solutions of equilibrium problem and fixed point problems. Fixed Point Theory Appl 2012:186
Latif A (2013) Dinh The Luc. Variational relation problems: existence of solutions and fixed points of set-valued contraction mappings. Fixed Point Theory Appl 1:315
Latif A, Al-Mazrooei AE, Dehaish BA, Yao JC (2013) Hybrid viscosity approximation methods for general systems of variational inequalities in Banach spaces. Fixed Point Theory Appl 2013:258
Lim TC (1974) A fixed point theorem for multivalued nonexpansive mappings in a uniformly convex Banach space. Bull Am Math Soc 80:1123–1126
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
Markin JT (2011) Fixed points for generalized nonexpansive mappings in R-trees. Comput Math Appl 62:4614–4618
Moudafi A (2000) Viscosity approximation methods for fixed-point problems. J Math Anal Appl 241:46–55
Moudafi A, Thera M (1999) Proximal and dynamical approaches to equilibrium problems. In: Lecture note in economics and mathematical systems, vol 477. Springer-Verlag, New York, pp 187–201
Naimpally SA, Singh KL (1983) Extensions of some fixed point theorems of Rhoades. J Math Anal Appl 96:437–446
Osilike MO, Isiogugu FO (2011) Weak and strong convergence theorems for nonspreading-type mappings in Hilbert space. Nonlinear Anal 74:1814–1822
Osilike MO, Igbokwe DI (2000) Weak and strong convergence theorems for fixed points of pseudocontractions and solutions of monotone type operator equations. Comput Math Appl 40:559–567
Plubtieng 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
Shahzad N, Zegeye H (2008) Strong convergence results for nonself multimaps in Banach spaces. Proc Am Math Soc 136:539–548
Shahzad N, Zegeye H (2009) On Mann and Ishikawa iteration schemes for multivalued maps in Banach space. Nonlinear Anal 71:838–844
Singthong U, Suantai S (2011) Equilibrium problems and fixed point problems for nonspreading-type mappings in Hilbert space. Int J Nonlinear Anal Appl 2:51–61
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
Vahidi J, Latif A, Eslamian M (2013) New iterative scheme with strict pseudo-contractions and multivalued nonexpansive mappings for fixed point problems and variational inequality problems. Fixed Point Theory Appl 2013:213
Vahidi J, Latif A, Eslamian M (2013) Strong convergence results for equilibrium problems and fixed point problems for multivalued mappings. In: Abstract and applied analysis, Vol 2013. Article ID 825130
Xu HK (2003) An iterative approach to quadratic optimization. J Optim Theory Appl 116:659–678
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by Carlos Conca.
Rights and permissions
About this article
Cite this article
Eslamian, M., Saadati, R. & Vahidi, J. Viscosity iterative process for demicontractive mappings and multivalued mappings and equilibrium problems. Comp. Appl. Math. 36, 1239–1253 (2017). https://doi.org/10.1007/s40314-015-0292-6
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40314-015-0292-6