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Random fixed point theorems for Caristi type random operators

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Abstract

We iteratively generate a sequence of measurable mappings and study necessary conditions for its convergence to a random fixed point of random nonexpansive operator. A random fixed point theorem for random nonexpansive operator, relaxing the convexity condition on the underlying space, is also proved. As an application, we obtained random fixed point theorems for Caristi type random operators.

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References

  1. R. P. Agarwal, D. O’Regen and N. Shahzad,Fixed point theory for generalized contractive maps of Meir-Keeler type, Math. Nachr.276 (2004), 3–22.

    Article  MATH  MathSciNet  Google Scholar 

  2. J. P. Aubin and H. Frankowska,Set-Valued Analysis, Birkhauser, Boston, 1990.

    MATH  Google Scholar 

  3. J. S. Bae,Fixed point theorems for weakly contractive multivalued maps, J. Math. Anal. Appl.,284 (2003), 690–697.

    Article  MATH  MathSciNet  Google Scholar 

  4. I. Beg,Minimal displacement of random variables under Lipschitz random maps, Topological Methods in Nonlinear Analysis.,19 (2002), 391–397.

    MATH  MathSciNet  Google Scholar 

  5. I. Beg,Approximation of random fixed points in normed spaces, Nonlinear Analysis.,51 (2002), 1363–1372.

    MATH  MathSciNet  Google Scholar 

  6. I. Beg and N. Shahzad,Random fixed points of random multivalued operators on Polish spaces, Nonlinear Anal.,20 (1993), 835–847.

    Article  MATH  MathSciNet  Google Scholar 

  7. I. Beg and N. Shahzad,On random approximation and a random fixed point theorem for multivalued mappings defined on unbounded sets in Hilbert spaces, Stochastic Anal. Appl.,14 (1996), 507–511.

    Article  MATH  MathSciNet  Google Scholar 

  8. I. Beg, A. R. Khan and N. Hussain,Approximations of *-nonexpansive random multivalued operators on Banach spaces, J. Aust. Math. Soc.,76 (2004), 51–66.

    Article  MATH  MathSciNet  Google Scholar 

  9. A. T. Bharucha-Reid,Random Integral Equations, Academic Press, New York, 1972.

    MATH  Google Scholar 

  10. A. T. Bharucha-Reid,Fixed point theorems in probabilistic analysis, Bull. Amer. Math. Soc.,82 (1976), 641–657.

    MATH  MathSciNet  Google Scholar 

  11. H. Brezis and F. E. Browder,A general principle on ordered sets in nonlinear functional analysis, Adv. Math.,21 (1976), 355–364.

    Article  MATH  MathSciNet  Google Scholar 

  12. J. Caristi,Fixed point theorems for mapping satisfying inwardness conditions, Trans. Amer. Math. Soc.,215 (1976), 241–251.

    Article  MATH  MathSciNet  Google Scholar 

  13. J. B. Diaz and F. T. Metcalf,On the structure of the set of subsequential limit points of successive approximations, Bull. Amer. Math. Soc.,73 (1967), 516–519.

    MATH  MathSciNet  Google Scholar 

  14. J. Gornicki,Weak convergence theorems for asymptotically nonexpansive mappings in uniformly convex Banach spaces, Comment. Math. Univ. Carolin.30 (1989), 249–252.

    MATH  MathSciNet  Google Scholar 

  15. O. Hans,Reduzierende zulliällige transformaten, Czechoslovak Math. J.,7 (1957), 154–158.

    MathSciNet  Google Scholar 

  16. O. Hans,Random operator equations, in: Proceedings of the Fourth Berkeley Symposium on Mathematical Statistics and Probability, Vol. II, Part I, University of California Press, Berkeley., 1961, 85–202.

    Google Scholar 

  17. G. Isac and J. Li,The convergence property of Ishikawa iteration schemes in noncompact subsets of Hilbert spaces and its applications to complementarity theory, Computers and Maths. with applications,47 (2004), 1745–1751.

    Article  MATH  MathSciNet  Google Scholar 

  18. S. Itoh,Random fixed point theorems with an application to random differential equations in Banach spaces, J. Math. Anal. Appl.,67 (1979), 261–273.

    Article  MATH  MathSciNet  Google Scholar 

  19. K. Kuratowski and C. Ryll-Nardzewski,A general theorem on selectors, Bull. Acad. Polon. Sci. Ser. Sci. Math. Astronom. Phys.,13 (1965), 397–403.

    MATH  MathSciNet  Google Scholar 

  20. E. Lami Dozo,Multivalued nonexpansive mappings and Opial condition, Proc Amer. Math. Soc.,38 (1973), 286–292.

    Article  MATH  MathSciNet  Google Scholar 

  21. Z. Opial,Weak convergence of the sequence of successive approximation for nonexpansive mappings, Bull. Amer. Math. Soc.,73 (1967), 591–597.

    MATH  MathSciNet  Google Scholar 

  22. N. S. Papageorgiou,Random fixed point theorems for measurable multifunctions in Banach spaces, Proc. Amer. Math. Soc.,97 (1986), 507–514.

    Article  MATH  MathSciNet  Google Scholar 

  23. N. Shahzad,Random fixed points of K-set- and pseudo-contractive random maps, Nonlinear Analysis.,57 (2004), 173–181.

    Article  MATH  MathSciNet  Google Scholar 

  24. A. Spacek,Zufállige gleichungen, Czechoslovak Math. J.,5 (1955), 462–466.

    MathSciNet  Google Scholar 

  25. H. K. Xu,Some random fixed point theorems for condensing and nonexpansive operators, Proc. Amer. Math. Soc.,110 (1990), 103–123.

    Article  MathSciNet  Google Scholar 

  26. H. K. Xu,Random fixed point theorems for nonlinear uniformly Lipschitzian mappings, Nonlinear Anal.,26 (1996), 1301–1311.

    Article  MATH  MathSciNet  Google Scholar 

  27. H. K. Xu and I. Beg,Measurability of fixed point sets of multivalued random operators, J. Math. Anal. Appl.,225 (1998), 62–72.

    Article  MATH  MathSciNet  Google Scholar 

  28. E. Zeidler,Nonlinear Functional Analysis I: Fixed Point Theory, Springer, New York, 1986.

    MATH  Google Scholar 

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Correspondence to Ismat Beg.

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Beg, I., Abbas, M. Random fixed point theorems for Caristi type random operators. J. Appl. Math. Comput. 25, 425–434 (2007). https://doi.org/10.1007/BF02832367

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  • DOI: https://doi.org/10.1007/BF02832367

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