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Generalized Ulam-Hyers stability of an AQ-functional equation in quasi-beta-normed spaces

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In this paper, we introduce and investigate the general solution of a new func¬tional equation f (4*+)+f ( 4*- 4s) = ?[(1+a)/ (x+y> +(1 - a)/ (-x -»)] + ^ [/(z + w) + /(-z - w)] where a, b > 2 and discuss its Generalized Hyers - Ulam - Rassias stability in Quasi -/3-normed spaces.
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