- Research Article
- Open Access
A Fixed Point Approach to the Stability of Quadratic Functional Equation with Involution
© S.-M. Jung and Z.-H. Lee. 2008
- Received: 27 September 2007
- Accepted: 26 November 2007
- Published: 10 June 2008
Cădariu and Radu applied the fixed point method to the investigation of Cauchy and Jensen functional equations. In this paper, we will adopt the idea of Cădariu and Radu to prove the Hyers-Ulam-Rassias stability of the quadratic functional equation with involution.
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