M. Eshaghi Gordji, H. Khodaei
Published 2008-12-30Version 1
In this paper, we achieve the general solution and the generalized Hyers-Ulam-Rassias stability for the quadratic type functional equation &f(x+y+2cz)+f(x+y-2cz)+c^2f(2x)+c^2f(2y) &=2[f(x+y)+c^2f(x+z)+c^2f(x-z)+c^2f(y+z)+c^2f(y-z)] {2.6 cm} for fixed integers $c$ with $c\neq0,\pm1$, by using the fixed point alternative.
Solution and stability of generalized mixed type cubic, quadratic and additive functional equation in quasi-Banach spaces
On the Stability of J*-Homomorphisms
Approximate $C^*$-Ternary Ring Homomorphisms
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