Abstract
The purpose of this paper is to investigate the problem of finding a common element of the set of fixed points of an asymptotically strict pseudocontractive mapping in the intermediate sense and the set of solutions of the variational inequality problem for a monotone, Lipschitz continuous mapping. We introduce a modified hybrid Mann iterative scheme with perturbed mapping which is based on well-known CQ method, Mann iteration method and hybrid (or outer approximation) method. We establish a strong convergence theorem for three sequences generated by this modified hybrid Mann iterative scheme with perturbed mapping. Utilizing this theorem, we also design an iterative process for finding a common fixed point of two mappings, one of which is an asymptotically strict pseudocontractive mapping in the intermediate sense and the other taken from the more general class of Lipschitz pseudocontractive mappings.
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Agarwal, R.P., O’Regan, D., Sahu, D.R.: Iterative construction of fixed points of nearly asymptotically nonexpansive mappings. J. Nonlinear Convex Anal. 8(1), 61–79 (2007)
Antipin, A.S.: Methods for solving variational inequalities with related constraints. Comput. Math. Math. Phys. 40, 1239–1254 (2000)
Antipin, A.S., Vasiliev, F.P.: Regularized prediction method for solving variational inequalities with an inexactly given set. Comput. Math. Math. Phys. 44, 750–758 (2004)
Bruck, R.E., Kuczumow, T., Reich, S.: Convergence of iterates of asymptotically nonexpansive mappings in Banach spaces with the uniform Opial property. Colloq. Math. 65, 169–179 (1993)
Burachik, R.S., Lopes, J.O., Svaiter, B.F.: An outer approximation method for the variational inequality problem. SIAM J. Control Optim. 43, 2071–2088 (2005)
Ceng, L.C., Yao, J.C.: An extragradient-like approximation method for variational inequality problems and fixed point problems. Appl. Math. Comput. 190, 205–215 (2007)
Ceng, L.C., Yao, J.C.: Mixed projection methods for systems of variational inequalities. J. Glob. Optim. 41, 465–478 (2008)
Ceng, L.C., Yao, J.C.: Relaxed viscosity approximation methods for fixed point problems and variational inequality problems. Nonlinear Anal., Theory Methods Appl. 69, 3299–3309 (2008)
Ceng, L.C., Yao, J.C.: Convergence analysis of a hybrid Mann iterative scheme with perturbed mapping for variational inequalities and fixed point problems. Optimization (2010). doi:10.1080/02331930902884356. ISSN 0233-1934 print/ISSN 1029-4945 online
Ceng, L.C., Ansari, Q.H., Yao, J.C.: Mann type steepest-descent and modified hybrid steepest-descent methods for variational inequalities in Banach spaces. Numer. Funct. Anal. Optim. 29(9–10), 987–1033 (2008)
Ceng, L.C., Lee, C., Yao, J.C.: Strong weak convergence theorems of implicit hybrid steepest-descent methods for variational inequalities. Taiwan. J. Math. 12, 227–244 (2008)
Ceng, L.C., Wong, N.C., Yao, J.C.: Fixed point solutions of variational inequalities for a finite family of asymptotically nonexpansive mappings without common fixed point assumption. Comput. Math. Appl. 56, 2312–2322 (2008)
Ceng, L.C., Xu, H.K., Yao, J.C.: The viscosity approximation method for asymptotically nonexpansive mappings in Banach spaces. Nonlinear Anal. 69(4), 1402–1412 (2008)
Ceng, L.C., Schaible, S., Yao, J.C.: Hybrid steepest descent methods for zeros of nonlinear operators with applications to variational inequalities. J. Optim. Theory Appl. 141, 75–91 (2009)
Ceng, L.C., Shyu, D.S., Yao, J.C.: Relaxed composite implicit iteration process for common fixed points of a finite family of strictly pseudocontractive mappings. Fixed Point Theory Appl. 2009, 402602 (2009). doi:10.1155/2009/402602, 16 pages
Ceng, L.C., Petruşel, A., Yao, J.C.: A hybrid method for Lipschitz continuous monotone mappings and asymptotically strict pseudocontractive mappings in the intermediate sense. J. Nonlinear Convex Anal. 11(1) (2010)
Ceng, L.C., Schaible, S., Yao, J.C.: Strong convergence of iterative algorithms for variational inequalities in Banach spaces. J. Optim. Theory Appl. (2009, to appear)
Chidume, C.E., Shahzad, N., Zegeye, H.: Convergence theorems for mappings which are asymptotically nonexpansive in the intermediate sense. Numer. Funct. Anal. Optim. 25, 239–257 (2004)
Goebel, K., Kirk, W.A.: A fixed point theorem for asymptotically nonexpansive mappings. Proc. Am. Math. Soc. 35(1), 171–174 (1972)
Gornicki, J.: Weak convergence theorems for asymptotically nonexpansive mappings in uniformly convex Banach spaces. Comment. Math. Univ. Carol. 30(2), 249–252 (1989)
Iiduka, H., Takahashi, W.: Strong convergence theorem by a hybrid method for nonlinear mappings of nonexpansive and monotone type and applications. Adv. Nonlinear Var. Inequal. 9, 1–10 (2006)
Iiduka, H., Takahashi, W., Toyoda, M.: Approximation of solutions of variational inequalities for monotone mappings. Panam. Math. J. 14, 49–61 (2004)
Kim, G.E., Kim, T.H.: Mann and Ishikawa iterations with errors for non-Lipschitzian mappings in Banach spaces. Comput. Math. Appl. 42, 1565–1570 (2001)
Kim, T.H., Xu, H.K.: Convergence of the modified Mann’s iteration method for asymptotically strict pseudocontractions. Nonlinear Anal. 68, 2828–2836 (2008)
Korpelevich, G.M.: The extragradient method for finding saddle points and other problems. Matecon 12, 747–756 (1976)
Lions, J.L.: Quelques Méthodes de Résolution des Problèmes aux Limites Non Linéaires. Dunod, Paris (1969)
Liu, F., Nashed, M.Z.: Regularization of nonlinear ill-posed variational inequalities and convergence rates. Set-Valued Anal. 6, 313–344 (1998)
Mann, W.R.: Mean value methods in iteration. Proc. Am. Math. Soc. 4, 506–510 (1953)
Marino, G., Xu, H.K.: Weak and strong convergence theorems for strict pseudo-contractions in Hilbert spaces. J. Math. Anal. Appl. 329, 336–346 (2007)
Nadezhkina, N., Takahashi, W.: Strong convergence theorem by a hybrid method for nonexpansive mappings and Lipschitz-continuous monotone mappings. SIAM J. Optim. 16, 1230–1241 (2006)
Nadezhkina, N., Takahashi, W.: Weak convergence theorem by an extragradient method for nonexpansive mappings and monotone mappings. J. Optim. Theory Appl. 128, 191–201 (2006)
Nakajo, K., Takahashi, W.: Strong convergence theorems for nonexpansive mappings and nonexpansive semigroups. J. Math. Anal. Appl. 279, 372–379 (2003)
Osilike, M.O., Igbokwe, D.I.: Weak and strong convergence theorems for fixed points of pseudocontractions and solutions of monotone type operator equations. Comput. Math. Appl. 40, 559–567 (2000)
Petruşel, A., Yao, J.C.: An extragradient iterative scheme by viscosity approximation methods for fixed point problems and variational inequality problems. Cent. Eur. J. Math. 7, 335–347 (2009)
Rockafellar, R.T.: On the maximality of sums of nonlinear monotone operators. Trans. Am. Math. Soc. 149, 75–88 (1970)
Sahu, D.R., Xu, H.K., Yao, J.C.: Asymptotically strict pseudocontractive mappings in the intermediate sense. Nonlinear Anal. 70, 3502–3511 (2009)
Schaible, S., Yao, J.C., Zeng, L.C.: A proximal method for pseudomonotone type variational-like inequalities. Taiwan. J. Math. 10, 497–513 (2006)
Schu, J.: Iterative construction of fixed points of asymptotically nonexpansive mapping. J. Math. Anal. Appl. 159, 407–413 (1991)
Takahashi, W.: Nonlinear Functional Analysis. Yokohama Publishers, Yokohama (2000)
Takahashi, W., Toyoda, M.: Weak convergence theorems for nonexpansive mappings and monotone mappings. J. Optim. Theory Appl. 118, 417–428 (2003)
Tam, N.N., Yao, J.C., Yen, N.D.: On some solution methods for pseudomonotone variational inequalities. J. Optim. Theory Appl. 138, 253–273 (2008)
Wong, N.C., Sahu, D.R., Yao, J.C.: Solving variational inequalities involving nonexpansive type mappings. Nonlinear Anal., Theory Methods Appl. 69, 4732–4753 (2008)
Xu, H.K.: Existence and convergence for fixed points for mappings of asymptotically nonexpansive type. Nonlinear Anal. 16, 1139–1146 (1991)
Yamada, I.: The hybrid steepest-descent method for the variational inequality problem over the intersection of fixed-point sets of nonexpansive mappings. In: Butnariu, D., Censor, Y., Reich, S. (eds.) Inherently Parallel Algorithms in Feasibility and Optimization and their Applications, pp. 473–504. Kluwer Academic, Dordrecht (2001)
Yao, J.C., Zeng, L.C.: Strong convergence of averaged approximants for asymptotically pseudocontractive mappings in Banach spaces. J. Nonlinear Convex Anal. 8, 451–462 (2007)
Zeng, L.C., Yao, J.C.: Strong convergence theorem by an extragradient method for fixed point problems and variational inequality problems. Taiwan. J. Math. 10, 1293–1303 (2006)
Zeng, L.C., Lin, L.J., Yao, J.C.: Auxiliary problem method for mixed variational-like inequalities. Taiwan. J. Math. 10, 515–529 (2006)
Zeng, L.C., Wong, N.C., Yao, J.C.: On the convergence analysis of modified hybrid steepest-descent methods with variable parameters for variational inequalities. J. Optim. Theory Appl. 132, 51–69 (2007)
Zeng, L.-C., Wang, C.-Y., Yao, J.C.: On general variable-step relaxed projection method for strongly quasivariational inequalities. Optimization 57, 607–620 (2008)
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This research was partially supported by the National Science Foundation of China (11071169), Innovation Program of Shanghai Municipal Education Commission (09ZZ133), Leading Academic Discipline Project of Shanghai Normal University (DZL707), Science and Technology Commission of Shanghai Municipality Grant (075105118), and Shanghai Leading Academic Discipline Project (S30405).
This research was partially supported by the Grant NSC 99-2221-E-110-038-MY3.
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Ceng, LC., Yao, JC. Strong Convergence Theorems for Variational Inequalities and Fixed Point Problems of Asymptotically Strict Pseudocontractive Mappings in the Intermediate Sense. Acta Appl Math 115, 167–191 (2011). https://doi.org/10.1007/s10440-011-9614-x
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DOI: https://doi.org/10.1007/s10440-011-9614-x
Keywords
- Modified hybrid Mann iterative scheme with perturbed mapping
- Variational inequality
- Asymptotically strict pseudocontractive mapping in the intermediate sense
- Fixed point
- Monotone mapping
- Strong convergence
- Demiclosedness principle