Abstract and Applied Analysis (Jan 2013)

Generalized Hyers-Ulam Stability of Quadratic Functional Inequality

  • Hark-Mahn Kim,
  • Kil-Woung Jun,
  • Eunyoung Son

DOI
https://doi.org/10.1155/2013/564923
Journal volume & issue
Vol. 2013

Abstract

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We establish the general solution of the functional inequality and then investigate the generalized Hyers-Ulam stability of this inequality in Banach spaces and in non-Archimedean Banach spaces.