Journal of applied mathematics & informatics

The Korean Society for Computational and Applied Mathematics (한국전산응용수학회)
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ON A ULAM STABILITY PROBLEM OF A EULER-LAGRANGE FUNCTIONAL EQUATIONS

  • Published : 2000.05.01

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Abstract

In this paper, we investigate a generalization of the Ulam stability problem of the 3-dimensional Euler-Lagrange functional equation f(x-y-z)+f(x)+f( y)+f(z)= f(x-y) +f(y+z) +f(z-x)

Keywords

References

  1. Internat. J. Math. Math. Sci. v.18 On a general Hyers-Ulam-stability result C. Borelli;G. L. Forti
  2. Abh. Math. Sem. Univ. Hamburg v.62 On the stability of the quadratic mapping in normed spaces S. Czerwik
  3. J. Math. Anal. Appl. v.232 On the Hyers-Ulam-Rassias stability of a quadratic functional equation S.-M. Jung
  4. Chinese J. Math. v.20 On the stability of the Euler-Lagrange functional equation J. M. Rassias
  5. Rend. Sem. Mat. Fis. Milano v.53 Proprieta locali e approssimazione di operatori F. Skof