Skip to main content

Strong convergence theorems by hybrid methods for nonexpansive mappings with equilibrium problems in Banach spaces equilibrium problems in Banach spaces

  • Conference paper
Advances in Mathematical Economics

Part of the book series: Advances in Mathematical Economics ((MATHECON,volume 14))

Abstract

Our purpose in this paper is to prove strong convergence theorems by hybrid methods for nonexpansive mappings in a Banach space under appropriate conditions. We first prove a strong convergence theorem by the shrinking projection method for semi-positively homogeneous nonexpansive mappings with an equilibrium problem in a Banach space. Next, we obtain another strong convergence theorem by the monotone hybrid method for semi-positively homogeneous nonexpansive mappings with an equilibrium problem in a Banach space. These theorems are proved by using the concept of set convergence.

Received: January 11, 2010

Revised: July 9, 2010

JEL classification: C62, C68

Mathematics Subject Classification (2000): 47H05, 47H09, 47H20

The research of the first author and the second author was partially supported by Grant-in-Aid for Scientific Research No. 19540167 from Japan Society for the Promotion of Science and by the grant NSC 98-2115-M-110-001, respectively.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 89.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 119.00
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  1. Alber, Y.I.: Metric and generalized projections in Banach spaces: properties and applications. In: Kartsatos, A.G. (ed.) Theory and Applications of Nonlinear Operators of Accretive and Monotone Type, pp. 15–50. Marcel Dekker, New York (1996)

    Google Scholar 

  2. Alber, Y.I., Reich, S.: An iterative method for soling a class of nonlinear operator equations in Banach spaces. PanAm. Math. J. 4, 39–54 (1994)

    Google Scholar 

  3. Aoyama, K., Takahashi, W.: Strong convergence theorems for a family of relatively nonexpansive mappings in Banach spaces. Fixed Point Theory 8, 143–160 (2007)

    Google Scholar 

  4. Aoyama, K., Kimura, Y., Takahashi, W.: Maximal monotone operators and maximal monotone functions for equilibrium problems. J. Convex Anal. 15, 395–409 (2008)

    Google Scholar 

  5. Aoyama, K., Kohsaka, F., Takahashi, W.: Three generalizations of firmly nonexpansive mappings: their relations and continuity properties. J. Nonlinear Convex Anal. 10, 131–147 (2009)

    Google Scholar 

  6. Blum, E., Oettli, W.: From optimization and variational inequalities to equilibrium problems. Math. Student 63, 123–145 (1994)

    Google Scholar 

  7. Combettes, P.L., Hirstoaga, A.: Equilibrium programming in Hilbert spaces. J. Nonlinear Convex Anal. 6, 117–136 (2005)

    Google Scholar 

  8. Dhompongsa, S., Fupinwong, W., Takahashi, W., Yao, J.-C.: Fixed point theorems for nonlinear mappings and strict convexity of Banach spaces. J. Nonlinear Convex Anal. 11, 175–183 (2010)

    Google Scholar 

  9. Honda, T., Takahashi, W.: Nonlinear projections and generalized conditional expectations in Banach spaces. Taiwanese J. Math. (to appear)

    Google Scholar 

  10. Honda, T., Ibaraki, T., Takahashi, W.: Duality theorems and convergence theorems for nonlineaqr mappings in Banach spaces. Int. J. Math. Stat. 6, 46–64 (2010)

    Google Scholar 

  11. Ibaraki, T., Takahashi, W.: A new projection and convergence theorems for the projections in Banach spaces. J. Approx. Theory 149, 1–14(2007)

    Article  Google Scholar 

  12. Ibaraki, T., Takahashi, W.: Generalized nonexpansive mappings and a proximal-type algorithm in Banach spaces. Contemp. Math. (to appear)

    Google Scholar 

  13. Ibaraki, T., Kimura, Y., Takahashi, W.: Convergence theorems for generalized projections and maximal monotone operators in Banach spaces. Abst. Appl. Anal. 2003, 621–629 (2003)

    Article  Google Scholar 

  14. Itoh, S., Takahashi, W.: The common fixed point theory of singlevalued mappings and multivalued mappings. Pac. J. Math. 79, 493–508 (1978)

    Google Scholar 

  15. Kamimura, S., Takahashi, W.: Strong convergence of a proximal-type algorithm in a Banach apace. SIAM J. Optim. 13, 938–945 (2002)

    Article  Google Scholar 

  16. Kimura, Y., Takahashi, W.: On a hybrid method for a family of relatively nonexpansive mappings in a Banach apace. J. Math. Anal. Appl. 357, 356–363 (2009)

    Article  Google Scholar 

  17. Kohsaka, F., Takahashi, W.: Generalized nonexpansive retractions and a proximal-type algorithm in Banach spaces. J. Nonlinear Convex Anal. 8, 197–209 (2007)

    Google Scholar 

  18. Kohsaka, F., Takahashi, W.: Existence and approximation of fixed points of firmly nonexpansive-type mappings in Banach spaces. SIAM J. Optim. 19, 824–835 (2008)

    Article  Google Scholar 

  19. Kohsaka, F., Takahashi, W.: Fixed point theorems for a class of nonlinear mappings related to maximal monotone operators in Banach spaces. Arch. Math. 91, 166–177 (2008)

    Article  Google Scholar 

  20. Matsushita, S., Takahashi, W.: Weak and strong convergence theorems for relatively nonexpansive mappings in Banach spaces. Fixed Point Theory Appl. 2004, 37–47 (2004)

    Article  Google Scholar 

  21. Matsushita, S., Takahashi, W.: A strong convergence theorem for relatively nonexpansive mappings in a Banach space. J. Approx. Theory 134, 257–266 (2005)

    Article  Google Scholar 

  22. Matsushita, S., Takahashi, W.: Approximating fixed points of nonexpansive mappings in a Banach space by metric projections. Appl. Math. Comput. 196, 422–425 (2008)

    Article  Google Scholar 

  23. Mosco,U.: Convergence of convex sets and of solutions of variational inequalities. Adv. Math. 3, 510–585 (1969)

    Article  Google Scholar 

  24. Moudafi, A.: Weak convergence theorems for nonexpansive mappings and equilibrium problems. J. Nonlinear Convex Anal. 9, 37–43 (2008)

    Google Scholar 

  25. Moudafi, A., Théra, M.: Proximal and dynamical approaches to equilibrium problems. Lecture Notes in Economics and Mathematical Systems, vol. 477, pp. 187–201. Springer, Berlin (1999)

    Google Scholar 

  26. Nakajo, K., Takahashi, W.: Strong convergence theorems for nonexpansive mappings and nonexpansive semigroups. J. Math. Anal. Appl. 279, 372–379 (2003)

    Article  Google Scholar 

  27. Ohsawa, S., Takahashi, W.: Strong convergence theorems for resolvents of maximal monotone operator. Arch. Math. 81, 439–445 (2003)

    Article  Google Scholar 

  28. Qin, X., Su, Y.: Strong convergence of monotone hybrid method for fixed point iteration processes. J. Syst. Sci. Complex. 21, 474–482 (2008)

    Article  Google Scholar 

  29. Solodov, M.V., Svaiter, B.F.: Forcing strong convergence of proximal point iterations in a Hilbert space. Math. Program. 87, 189–202 (2000)

    Google Scholar 

  30. Tada, A., Takahashi, W.: Strong convergence theorem for an equilibrium problem and a nonexpansive mapping. J. Optim. Theory Appl. 133, 359–370 (2007)

    Article  Google Scholar 

  31. Takahashi, W.: Convex Analysis and Approximation of Fixed Points (Japanese). Yokohama Publishers, Yokohama (2000)

    Google Scholar 

  32. Takahashi, W.: Nonlinear Functional Analysis. Yokohama Publishers, Yokohama (2000)

    Google Scholar 

  33. Takahashi, W.: Proximal point algorithms and four resolvents of nonlinear operators of monotone type in Banach spaces. Taiwanese J. Math. 12, 1883–1910 (2008)

    Google Scholar 

  34. Takahashi, S., Takahashi, W.: Viscosity approximation methods for equilibrium problems and fixed point problems in Hilbert spaces. J. Math. Anal. Appl. 331, 506–515 (2007)

    Article  Google Scholar 

  35. Takahashi, S., Takahashi, W.: Strong convergence theorems for a generalized equilibrium problem anda nonexpansive mapping in a Hilbert space. Nonlinear Anal. 69, 1025–1033 (2008)

    Article  Google Scholar 

  36. Takahashi, W., Zembayashi, K.: A strong convergence theorem for the equilibrium problem with a bifunction defined on the dual space of a Banach space. In: Dhompongsa, S., Goebel, K., Kirk, W.A., Plubtieng, S., Sims, B., Suantai, S. (eds.) Fixed Point Theory and Its Applications, pp. 197–209. Yokohama Publishers, Yokohama (2008)

    Google Scholar 

  37. Takahashi, W., Zembayashi, K.: Strong and weak convergence theorem for equilibrium problems and relatively nonexpansive mappings in Banach spaces. Nonlinear Anal. 70, 45–57 (2009)

    Article  Google Scholar 

  38. Takahashi, W., Takeuchi, Y., Kubota, R.: Strong convergence theorems by hybrid methods for families of nonexpansive mappings in Hilbert spaces. J. Math. Anal. Appl. 341, 276–286 (2008)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Jen-Chih Yao .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2011 Springer

About this paper

Cite this paper

Takahashi, W., Yao, JC. (2011). Strong convergence theorems by hybrid methods for nonexpansive mappings with equilibrium problems in Banach spaces equilibrium problems in Banach spaces. In: Kusuoka, S., Maruyama, T. (eds) Advances in Mathematical Economics. Advances in Mathematical Economics, vol 14. Springer, Tokyo. https://doi.org/10.1007/978-4-431-53883-7_9

Download citation

Publish with us

Policies and ethics