Journal of the Chungcheong Mathematical Society (충청수학회지)
- Volume 15 Issue 2
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- Pages.73-84
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- 2003
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- 1226-3524(pISSN)
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- 2383-6245(eISSN)
ON STABILITY OF A QUADRATIC FUNCTIONAL EQUATION
- Jun, Kil-Woung (Department of Mathematics Chungnam National University) ;
- Kim, Hark-Mann (Department of Mathematics Chungnam National University) ;
- Lee, Don O (Information Center for Mathematical Sciences Korea Advanced Institute of Science and Technology)
- Received : 2003.01.18
- Published : 2003.02.26
Abstract
In this paper, we investigate the new quadratic type functional equation f(2x + y) - f(x + 2y) = 3f(x) - 3f(y) and prove the stablility of this equation in the spirit of Hyers, Ulam, Rassias and G