Journal of applied mathematics & informatics
- Volume 18 Issue 1_2
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- Pages.563-572
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- 2005
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- 2734-1194(pISSN)
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- 2234-8417(eISSN)
ON AN ADDITIVE-QUADRATIC FUNCTIONAL EQUATION AND ITS STABILITY
- PARK WON-GIL (Department of Mathematics, Hannam University) ;
- BAE JAE-HYEONG (Department of Mathematics and Applied Mathematics, Kyunghee University) ;
- CHUNG BO-HYUN (Mathematics Section, College of Science and Technology, Hongik University)
- Published : 2005.03.01
Abstract
In this paper, we obtain the general solution and the generalized Hyers-Ulam stability of the additive-quadratic functional equation f(x + y, z + w) + f(x + y, z - w) = 2f(x, z)+2f(x, w)+2f(y, z)+2f(y, w).