Stability of Quadratic Functional Equations via the Fixed Point and Direct Method

Cădariu and Radu applied the fixed point theorem to prove the stability theorem of Cauchy and Jensen functional equations. In this paper, we prove the generalized Hyers-Ulam stability via the fixed point method and investigate new theorems via direct method concerning the stability of a gen...

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Bibliographic Details
Main Authors: Juri Lee, Eunyoung Son, Hark-Mahn Kim
Format: Article
Language:English
Published: SpringerOpen 2010-01-01
Series:Journal of Inequalities and Applications
Online Access:http://dx.doi.org/10.1155/2010/635720