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Related Results on Stability of Functional Inequalities and Equations

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Stability of Functional Equations in Random Normed Spaces

Part of the book series: Springer Optimization and Its Applications ((SOIA,volume 86))

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Abstract

In this chapter, we prove some stability results for certain functional inequalities and functional equations in latticetic random φ-normed spaces, r-divisible groups and homogeneous probabilistic (random) modular spaces.

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References

  1. J. Aczél, Lectures on Functional Equations and Their Applications (Academic Press, New York, 1966)

    MATH  Google Scholar 

  2. J. Aczél, J. Dhombres, Functional Equations in Several Variables (Cambridge University Press, Cambridge, 1989)

    Book  MATH  Google Scholar 

  3. L. Cădariu, V. Radu, On the stability of the Cauchy functional equation: a fixed point approach. Grazer Math. Ber. 346, 43–52 (2004)

    MATH  Google Scholar 

  4. P.W. Cholewa, The stability problem for a generalized Cauchy type functional equation. Rev. Roum. Math. Pures Appl. 29, 457–460 (1984)

    MathSciNet  MATH  Google Scholar 

  5. J.K. Chung, P.K. Sahoo, On the general solution of a quartic functional equation. Bull. Korean Math. Soc. 40, 565–576 (2003)

    Article  MathSciNet  MATH  Google Scholar 

  6. S. Czerwik, On the stability of the quadratic mapping in normed spaces. Abh. Math. Semin. Univ. Hamb. 62, 59–64 (1992)

    Article  MathSciNet  MATH  Google Scholar 

  7. A. Ebadian, A. Najati, M. Eshaghi Gordji, On approximate additive–quartic and quadratic–cubic functional equations in two variables on Abelian groups. Results Math. (2010). doi:10.1007/s00025-010-0018-4

    MathSciNet  Google Scholar 

  8. M. Eshaghi Gordji, Stability of a functional equation deriving from quartic and additive functions. Bull. Korean Math. Soc. 47, 491–502 (2010)

    Article  MathSciNet  MATH  Google Scholar 

  9. M. Eshaghi Gordji, M.B. Ghaemi, S.K. Gharetapeh, S. Shams, A. Ebadian, On the stability of J -derivations. J. Geom. Phys. 60, 454–459 (2010)

    Article  MathSciNet  MATH  Google Scholar 

  10. M. Eshaghi Gordji, S.K. Gharetapeh, C. Park, S. Zolfaghri, Stability of an additive–cubic–quartic functional equation. Adv. Differ. Equ. 2009, 395693 (2009), 20 pp.

    Google Scholar 

  11. M. Eshaghi Gordji, S.K. Gharetapeh, J.M. Rassias, S. Zolfaghari, Solution and stability of a mixed type additive, quadratic and cubic functional equation. Adv. Differ. Equ. 2009, 826130 (2009), 17 pp.

    Google Scholar 

  12. M. Eshaghi Gordji, H. Khodaei, On the generalized Hyers–Ulam–Rassias stability of quadratic functional equations. Abstr. Appl. Anal. 2009, 923476 (2009), 11 pp.

    MathSciNet  Google Scholar 

  13. W. Fechner, Stability of a functional inequalities associated with the Jordan–von Neumann functional equation. Aequ. Math. 71, 149–161 (2006)

    Article  MathSciNet  MATH  Google Scholar 

  14. G.L. Forti, An existence and stability theorem for a class of functional equations. Stochastica 4, 22–30 (1980)

    Google Scholar 

  15. M.B. Ghaemi, M. Eshaghi Gordji, H. Majani, Approximately quintic and sextic mappings on the probabilistic normed spaces. Preprint

    Google Scholar 

  16. A. Gilányi, Eine zur Parallelogrammgleichung äquivalente Ungleichung. Aequ. Math. 62, 303–309 (2001)

    Article  MATH  Google Scholar 

  17. A. Gilányi, On a problem by K. Nikodem. Math. Inequal. Appl. 5, 707–710 (2002)

    MathSciNet  MATH  Google Scholar 

  18. O. Hadžić, E. Pap, V. Radu, Generalized contraction mapping principles in probabilistic metric spaces. Acta Math. Hung. 101, 131–148 (2003)

    Article  MATH  Google Scholar 

  19. K.W. Jun, H.M. Kim, The generalized Hyers–Ulam–Rassias stability of a cubic functional equation. J. Math. Anal. Appl. 274, 867–878 (2002)

    Article  MathSciNet  MATH  Google Scholar 

  20. K.W. Jun, H.M. Kim, I.S. Chang, On the Hyers–Ulam stability of an Euler–Lagrange type cubic functional equation. J. Comput. Anal. Appl. 7, 21–33 (2005)

    MathSciNet  MATH  Google Scholar 

  21. S.M. Jung, Z.H. Lee, A fixed point approach to the stability of quadratic functional equation with involution. Fixed Point Theory Appl. 2008, 732086 (2008), 11 pp.

    MathSciNet  Google Scholar 

  22. S.M. Jung, S. Min, A fixed point approach to the stability of the functional equation f(x+y)=F[f(x),f(y)]. Fixed Point Theory Appl. 2009, 912046 (2009), 8 pp.

    Article  MathSciNet  Google Scholar 

  23. P. Kannappan, Quadratic functional equation and inner product spaces. Results Math. 27, 368–372 (1995)

    Article  MathSciNet  MATH  Google Scholar 

  24. S. Lee, S. Im, I. Hwang, Quartic functional equations. J. Math. Anal. Appl. 307, 387–394 (2005)

    Article  MathSciNet  MATH  Google Scholar 

  25. A. Najati, Hyers–Ulam–Rassias stability of a cubic functional equation. Bull. Korean Math. Soc. 44, 825–840 (2007)

    Article  MathSciNet  MATH  Google Scholar 

  26. C. Park, Fixed points in functional inequalities. J. Inequal. Appl. 2008, 298050 (2008), pp. 8

    Article  Google Scholar 

  27. C. Park, Y. Cho, M. Han, Functional inequalities associated with Jordan–von Neumann type additive functional equations. J. Inequal. Appl. 2007, 41820 (2007)

    MathSciNet  Google Scholar 

  28. J. Rätz, On inequalities associated with the Jordan–von Neumann functional equation. Aequ. Math. 66, 191–200 (2003)

    Article  MATH  Google Scholar 

  29. F. Skof, Proprietà locali e approssimazione di operatori. Rend. Semin. Mat. Fis. Milano 53, 113–129 (1983)

    Article  MathSciNet  MATH  Google Scholar 

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Cho, Y.J., Rassias, T.M., Saadati, R. (2013). Related Results on Stability of Functional Inequalities and Equations. In: Stability of Functional Equations in Random Normed Spaces. Springer Optimization and Its Applications, vol 86. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8477-6_9

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