Open Access

On the Stability of Trigonometric Functional Equations

Advances in Difference Equations20082007:090405

Received: 17 February 2007

Accepted: 5 October 2007

Published: 30 January 2008


The aim of this paper is to study the superstability related to the d'Alembert, the Wilson, the sine functional equations for the trigonometric functional equations as follows: .


Authors’ Affiliations

Department of Mathematics, Kangnam University


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© Gwang Hui Kim. 2007

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