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A functional equation originating from quadratic forms |
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| Authors: | Jae-Hyeong Bae |
| Institution: | a Department of Mathematics and Applied Mathematics, Kyung Hee University, 449-701 Yongin, Republic of Korea b National Institute for Mathematical Sciences, 385-16 Doryong, Yuseong-Gu, 305-340 Daejeon, Republic of Korea |
| Abstract: | In this paper, we obtain the general solution and the stability of the 2-variable quadratic functional equation f(x+y,z+w)+f(x−y,z−w)=2f(x,z)+2f(y,w). |
| Keywords: | Solution Stability 2-Variable quadratic functional equation |
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