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ON THE STABILITY OF 
QUADRATIC FUNCTIONAL EQUATION
Author(s) : Iz. El-Fassi, N. Bounader, A. Chahbi and S. Kabbaj
Pages : [61] - [76]
Received : November 23, 2012; Revised December 25, 2012
Communicated by : Professor Erdal Karapinar
Pages : [61] - [76]
Received : November 23, 2012; Revised December 25, 2012
Communicated by : Professor Erdal Karapinar
Abstract
In this paper, we establish the generalized Hyers-Ulam stability of the equation
and
on Banach spaces, by using the fixed theorem.
Keywords
stability, quadratic functional equation, Banach spaces, fixed point method.