DOI QR코드

DOI QR Code

A HYBRID METHOD FOR A COUNTABLE FAMILY OF LIPSCHITZ GENERALIZED ASYMPTOTICALLY QUASI-NONEXPANSIVE MAPPINGS AND AN EQUILIBRIUM PROBLEM

  • 투고 : 2012.05.08
  • 발행 : 2013.04.30

초록

In this paper, we introduce a new iterative scheme for finding a common element of the fixed points set of a countable family of uniformly Lipschitzian generalized asymptotically quasi-nonexpansive mappings and the solutions set of equilibrium problems. Some strong convergence theorems of the proposed iterative scheme are established by using the concept of W-mappings of a countable family of uniformly Lipschitzian generalized asymptotically quasi-nonexpansive mappings.

키워드

참고문헌

  1. H. H. Bauschke, E. Matouskova, and S. Reich, Projection and proximal point methods: convergence results and counterexamples, Nonlinear Anal. 56 (2004), no. 5, 715-738. https://doi.org/10.1016/j.na.2003.10.010
  2. E. Blum and W. Oettli, From optimization and variational inequalities to equilibrium problems, Math. Student 63 (1994), no. 1-4, 123-145.
  3. L. C. Ceng and J. C. Yao, A hybrid iterative scheme for mixed equilibrium problems and fixed point problems, J. Comput. Appl. Math. 214 (2008), no. 1, 186-201. https://doi.org/10.1016/j.cam.2007.02.022
  4. J. W. Chen, Y. J. Cho, and Z. Wan, Shrinking projection algorithms for equilibrium problems with a bifunction defined on the dual space of a Banach space, Fixed Point Theory Appl. 2011 (2011), 11 pages. https://doi.org/10.1186/1687-1812-2011-11
  5. Y. J. Cho, X. Qin, and J. I. Kang, Convergence theorems based on hybrid methods for generalized equilibrium problems and fixed point problems, Nonlinear Anal. 71 (2009), no. 9, 4203-4214. https://doi.org/10.1016/j.na.2009.02.106
  6. P. Cholamjiak, A hybrid iterative scheme for equilibrium problems, variational inequality problems and fixed point problems in Banach spaces, Fixed Point Theory Appl. 2009 (2009), Article ID 719360, 18 pages. https://doi.org/10.1155/2009/719360
  7. P. Cholamjiak and S. Suantai, A new hybrid algorithm for variational inclusions, generalized equilibrium problems and a finite family of quasi-nonexpansive mappings, Fixed Point Theory Appl. 2009 (2009), Article ID 350979, 20 pages. https://doi.org/10.1155/2009/350979
  8. W. Cholamjiak and S. Suantai, Monotone hybrid projection algorithms for an infinitely countable family of Lipschitz generalized asymptotically quasi-nonexpansive mappings, Abstr. Appl. Anal. 2009 (2009), Article ID 297565, 16 pages.
  9. P. L. Combettes and S. A. Hirstoaga, Equilibrium programming in Hilbert spaces, J. Nonlinear Convex Anal. 6 (2005), no. 1, 117-136.
  10. A. Genel and J. Lindenstrauss, An example concerning fixed points, Israel J. Math. 22 (1975), no. 1, 81-86. https://doi.org/10.1007/BF02757276
  11. A. Kangtunyakarn and S. Suantai, Hybrid iterative scheme for generalized equilibrium problems and fixed point problems of finite family of nonexpansive mappings, Nonlinear Anal. Hybrid Syst. 3 (2009), no. 3, 296-309. https://doi.org/10.1016/j.nahs.2009.01.012
  12. T. H. Kim and H. K. Xu, Strong convergence of modified Mann iterations for asymptotically nonexpansive mappings and semigroups, Nonlinear Anal. 64 (2006), no. 5, 1140-1152. https://doi.org/10.1016/j.na.2005.05.059
  13. W. R. Mann, Mean value methods in iteration, Proc. Amer. Math. Soc. 4 (1953), 506-510. https://doi.org/10.1090/S0002-9939-1953-0054846-3
  14. G. Marino and H. K. Xu, Weak and strong convergence theorems for strict pseudo-contractions in Hilbert spaces, J. Math. Anal. Appl. 329 (2007), no. 1, 336-346. https://doi.org/10.1016/j.jmaa.2006.06.055
  15. C. Martinez-Yanes and H. K. Xu, Strong convergence of the CQ method for fixed point iteration processes, Nonlinear Anal. 64 (2006), no. 11, 2400-2411. https://doi.org/10.1016/j.na.2005.08.018
  16. K. Nakajo, K. Shimoji, and W. Takahashi, Strong convergence theorems by the hybrid method for families of nonexpansive mappings in Hilbert spaces, Taiwanese J. Math. 10 (2006), no. 2, 339-360. https://doi.org/10.11650/twjm/1500403829
  17. K. Nakajo, K. Shimoji, and W. Takahashi, On strong convergence by the hybrid method for families of mappings in Hilbert spaces, Nonlinear Anal. 71 (2009), no. 1-2, 112-119. https://doi.org/10.1016/j.na.2008.10.034
  18. K. Nakajo and W. Takahashi, Strong convergence theorems for nonexpansive mappings and nonexpansive semigroups, J. Math. Anal. Appl. 279 (2003), no. 2, 372-379. https://doi.org/10.1016/S0022-247X(02)00458-4
  19. W. Nilsrakoo and S. Seajung, Weak and strong convergence theorems for countable Lipschitzian mappings and its applications, Nonlinear Anal. 69 (2008), no. 8, 2695-2708. https://doi.org/10.1016/j.na.2007.08.044
  20. W. Nilsrakoo and S. Seajung, Strong convergence theorems for a countable family of quasi-Lipschitzian mappings and its applications, J. Math. Anal. Appl. 356 (2009), no. 1, 154-167. https://doi.org/10.1016/j.jmaa.2009.03.002
  21. J.W. Peng, Y. C. Liou, and J. C. Yao, An iterative algorithm combining viscosity method with parallel method for a generalized equilibrium problem and strict pseudocontractions, Fixed Point Theory Appl. 2009 (2009), Article ID 794178, 21 pages. https://doi.org/10.1155/2009/794178
  22. S. Reich, Weak convergence theorems for nonexpansive mappings in Banach spaces, J. Math. Anal. Appl. 67 (1979), no. 2, 274-276. https://doi.org/10.1016/0022-247X(79)90024-6
  23. D. R. Sahu, H. K. Xu, and J. C. Yao, Asymptotically strict pseudocontractive mappings in the intermediate sense, Nonlinear Anal. 70 (2009), no. 10, 3502-3511. https://doi.org/10.1016/j.na.2008.07.007
  24. N. Shahzad and H. Zegeye, Strong convergence of an implicit iteration process for a finite family of generalized asymptotically quasi-nonexpansive maps, Appl. Math. Comput. 189 (2007), no. 2, 1058-1065. https://doi.org/10.1016/j.amc.2006.11.152
  25. K. Shimoji and W. Takahashi, Strong convergence to common fixed points of infinite nonexpansive mappings and application, Taiwanese J. Math. 5 (2001), no. 2, 387-404. https://doi.org/10.11650/twjm/1500407345
  26. A. Tada and W. Takahashi, Weak and strong convergence theorems for a nonexpansive mapping and an equilibrium problem, J. Optim. Theory Appl. 133 (2007), no. 3, 359-370. https://doi.org/10.1007/s10957-007-9187-z
  27. W. Takahashi, Weak and strong convergence theorems for families of nonexpansive mappings and their applications, Ann. Univ. Mariae Curie-Sklodowska Sect. A 51 (1997), no. 2, 277-292.
  28. W. Takahashi, Y. Takeuchi, and R. Kubota, Strong convergence theorems by hybrid methods for families of nonexpansive mappings in Hilbert spaces, J. Math. Anal. Appl. 341 (2008), no. 1, 276-286. https://doi.org/10.1016/j.jmaa.2007.09.062
  29. H. K. Xu, Inequality in Banach spaces with applications, Nonlinear Anal. 16 (1991), no. 12, 1127-1138. https://doi.org/10.1016/0362-546X(91)90200-K
  30. Y. Yao, Y. J. Cho, and Y. Liou, Algorithms of common solutions for variational inclusions, mixed equilibrium problems and fixed point problems, European J. Oper. Res. 212 (2011), no. 2, 242-250. https://doi.org/10.1016/j.ejor.2011.01.042
  31. H. Zhou, Strong convergence theorems for a family of Lipschitz quasi pseudo-contractions in Hilbert spaces, Nonlinear Anal. 71 (2009), no. 1-2, 120-125. https://doi.org/10.1016/j.na.2008.10.059
  32. H. Zhou and Y. Su, Strong convergence theorems for a family of quasi-asymptotic pseudo-contractions in Hilbert spaces, Nonlinear Anal. 70 (2009), no. 11, 4047-4052. https://doi.org/10.1016/j.na.2008.08.013