Hyers-Ulam-Rassias stability of a composite functional equation in various normed spaces
Author/Authors :
AZADI, KENARY H
Pages :
21
From page :
383
To page :
403
Abstract :
In this paper, we prove the generalized Hyers-Ulam(or Hyers-Ulam-Rassias ) stability of the following composite functional equation f(f(x)-f(y))=f(x+y)+f(x-y)-f(x)-f(y) in various normed spaces.
Keywords :
Generalized Hyers-Ulam stability , random normed space , non-Archimedean normed spaces , fixed point method
