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http://dx.doi.org/10.5831/HMJ.2015.37.4.473

STABILITY OF A 3-DIMENSIONAL QUADRATIC-ADDITIVE TYPE FUNCTIONAL EQUATION  

LEE, YANG-HI (Department of Mathematics Education, Gongju National University of Education)
Publication Information
Honam Mathematical Journal / v.37, no.4, 2015 , pp. 473-486 More about this Journal
Abstract
In this paper, we investigate a stability problem for a functional equation f(-x - y - z) - f(x + y) - f(y + z) - f(x + z) + 2f(x) + 2f(y) + 2f(z) - f(-x) - f(-y) - f(-z) = 0 by applying the direct method.
Keywords
stability; direct method;
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Times Cited By KSCI : 1  (Citation Analysis)
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