DOI QR코드

DOI QR Code

THE GENERALIZED HYERS-ULAM STABILITY OF ADDITIVE FUNCTIONAL INEQUALITIES IN NON-ARCHIMEDEAN 2-NORMED SPACE

  • Kim, Chang Il (Department of Mathematics Education Dankook University) ;
  • Park, Se Won (Department of Liberal arts and Science Shingyeong University)
  • Received : 2014.03.18
  • Accepted : 2014.06.09
  • Published : 2014.06.30

Abstract

In this paper, we investigate the solution of the following functional inequality $${\parallel}f(x)+f(y)+f(az),\;w{\parallel}{\leq}{\parallel}f(x+y)-f(-az),\;w{\parallel}$$ for some xed non-zero integer a, and prove the generalized Hyers-Ulam stability of it in non-Archimedean 2-normed spaces.

Keywords

References

  1. T. Aoki, On the stability of the linear transformation in Banach space, J. Math. Soc. Japan. 2 (1950), 64-66. https://doi.org/10.2969/jmsj/00210064
  2. W. Fechner, Stability of a functional inequalty associated with the Jordan-Von Neumann functional equation, Aequationes Math. 71 (2006), 149-161. https://doi.org/10.1007/s00010-005-2775-9
  3. S. Gahler, 2-metrische Rume und ihre topologische Struktur, Math. Nachr. 26 (1963), 115-148. https://doi.org/10.1002/mana.19630260109
  4. S. Gahler, Lineare 2-normierte Rumen, Math. Nachr. 28 (1964), 1-43. https://doi.org/10.1002/mana.19640280102
  5. P. Gavruta, A generalization of the Hyers-Ulam-Rassias of approximatel additive mappings, J. Math. Anal. 184 (1994), 431-436. https://doi.org/10.1006/jmaa.1994.1211
  6. A. Gil'anyi, Eine Parallelogrammgleichung "aquivalente Ungleichung, Aequationes Math. 62 (2001), 303-309. https://doi.org/10.1007/PL00000156
  7. A. Gil'anyi, On a problem by K. Nikoden, Math. Inequal. Appl. 5 (2002), 701-710.
  8. E. M. Gordji, M. B. Ghaemi, Y. Cho, and H. Majani, A general system of Euler-Lagrange-type quadratic functional equations in Menger Probabilistic non-Archimedean spaces, Abst. Appl. Anal. 2011 (2011).
  9. K. Hensel, ber eine neue Begrndung der Theorie der algebraischen Zahlen, Jahresber, Dtsch. Math.-Ver. 6 (1897), 83-88.
  10. D. H. Hyers, On the stability of the linear functional equation, Proc. Natl. Acad. Sci. USA 27 (1941), 222-224. https://doi.org/10.1073/pnas.27.4.222
  11. Z. Lewandowska, Linear operators on generalized 2-normed spaces, Bull. Math. Soc. Sci. Math. Roumanie (N.S.) 42 (1999), 353-368.
  12. Z. Lewandowska, Bounded 2-linear operators on 2-normed sets, Glas. Mat. 39 (2004), 301-312. https://doi.org/10.3336/gm.39.2.11
  13. M. S. Moslehian and T. H. Rassias, Stability of functional equations in non-Archimedean spaces, Applicable Anal. Discrete Math. 1 (2007), 325-334. https://doi.org/10.2298/AADM0702325M
  14. W. Park, Approximate additive mappings in 2-Banach spaces and related topics, J. Math. Anal. Appl. 376 (2011), 193-202. https://doi.org/10.1016/j.jmaa.2010.10.004
  15. C. Park, Y. Cho, and M. Han, Functional inequalities associated with Jordan-von Neumann type additive functional equations, J. Inequal. Appl. (2007).
  16. C. Park, M. E. Gordji, M. B. Ghaemi and H. Majani, Fixed points and approximately octic mappings in non-Archimedean 2-normed spaces, J. Inequal. Appl. (2012).
  17. T. M. Rassias, On the stability of the linear mapping in Banach spaces, Proc. Am. Math. Soc. 72 (1978), 297-300. https://doi.org/10.1090/S0002-9939-1978-0507327-1
  18. S. M. Ulam, Problems in Modern Mathematics, Wiley, New York; 1964.
  19. A. White, 2-Banach spaces, Math. Nachr. 42 (1969), 43-60. https://doi.org/10.1002/mana.19690420104

Cited by

  1. Approximate mixed type quadratic-cubic functional equation vol.6, pp.4, 2021, https://doi.org/10.3934/math.2021211
  2. On Ulam Stability of Functional Equations in 2-Normed Spaces-A Survey vol.13, pp.11, 2014, https://doi.org/10.3390/sym13112200