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2011 A Fixed Point Approach to the Stability of the Cauchy Additive and Quadratic Type Functional Equation
Sun Sook Jin, Yang-Hi Lee
J. Appl. Math. 2011: 1-16 (2011). DOI: 10.1155/2011/817079

Abstract

We investigate the stability of the functional equation 2f ( x + y ) + f ( x - y ) + f ( y - x ) - 3f ( x ) - f ( - x ) - 3f ( y ) - f ( - y ) = 0 by using the fixed point theory in the sense of Cadariu and Radu.

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Sun Sook Jin. Yang-Hi Lee. "A Fixed Point Approach to the Stability of the Cauchy Additive and Quadratic Type Functional Equation." J. Appl. Math. 2011 1 - 16, 2011. https://doi.org/10.1155/2011/817079

Information

Published: 2011
First available in Project Euclid: 15 March 2012

zbMATH: 1303.39017
MathSciNet: MR2830758
Digital Object Identifier: 10.1155/2011/817079

Rights: Copyright © 2011 Hindawi

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