Abstract In Neutrosophic Normed spaces, we investigate a unique quadratic function and a
unique additive quadratic function of the Hyers-Ulam-Rassias stability for the functional …

Stability of a mixed functional equation in several variables on Banach modules - ScienceDirect
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AQCQ‐Functional Equation in Non‐Archimedean Normed Spaces - Gordji - 2010 - Abstract and
Applied Analysis - Wiley Online Library Skip to Article Content Skip to Article Information Wiley …

Stability of Cauchy–Jensen type functional equation in generalized fuzzy normed spaces -
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Following the definition of coupled fixed point [TG Bhaskar, V. Lakshmikantham, Fixed point
theorems in partially ordered metric spaces and applications, Nonlinear Anal. 65 (2006) …

In this paper, we acquire the general solution of the generalized quadratic functional
equation Sigma (1<= a<= b<= c<= m) phi (r (a)+ r (b)+ r (c))=(m-2) Sigma (1<= a<= b<= m) …

Using the fixed point method, we prove the Hyers-Ulam stability of a Cauchy-Jensen type
additive set-valued functional equation, a Jensen type additive-quadratic set-valued …

Stability of mixed additive–quadratic Jensen type functional equation in various spaces -
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Th. M. Rassias (1984) proved that the norm defined over a real vector space X is induced by
an inner product if and only if for a fixed integer n≥ 2,∑ i= 1 n∥ xi-(11/n)∑ j= 1 nxj∥ 2=∑ …

The stability of the additive Cauchy functional equation in non-Archimedean fuzzy normed
spaces Page 1 Fuzzy Sets and Systems 161 (2010) 2206–2212 www.elsevier.com/locate/fss …