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arXiv · 0812.5025

Stability of a functional equation deriving from quartic and additive functions

M. Eshaghi Gordji
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Abstract

In this paper, we obtain the general solution and the generalized Hyers-Ulam Rassias stability of the functional equation $$f(2x+y)+f(2x-y)=4(f(x+y)+f(x-y))-{3/7}(f(2y)-2f(y))+2f(2x)-8f(x).$$

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M. Eshaghi Gordji. 2008-12-30. Stability of a functional equation deriving from quartic and additive functions. https://arxiv.org/abs/0812.5025

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