Abstract. Using the fixed point method, we prove the generalized HyersUlam stability of the following cubic-quartic functional equationin fuzzy Banach spaces.
Abstract. In this paper, we investigate the Cauchy-Rassias stability in Banach spaces and also the Cauchy-Rassias stability using the alternative fixed point for the functional equation:for any fixed nonzero integers s, t, r with r = ±1.
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