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Stability of the Quadratic Equation of Pexider Type |
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| Authors: | Soon-Mo Jung |
| Affiliation: | (1) Mathematics Section, College of Science & Technology, Hong-Ik University, 339-701 Chochiwon, Korea |
| Abstract: | We will investigate the stability problem of the quadratic equation (1) and extend the results of Borelli and Forti, Czerwik, and Rassias. By applying this result and an improved theorem of the author, we will also prove the stability of the quadratic functional equation of Pexider type,f 1 (x +y) + f2(x -y) =f 3(x) +f 4(y), for a large class of functions. |
| Keywords: | KeywordHeading" > and phrases Quadratic functional equation quadratic equation of Pexider type stability |
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