Honam Mathematical Journal (호남수학학술지)

The Honam Mathematical Society (호남수학회)
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STABILITY OF A 3-DIMENSIONAL QUADRATIC-ADDITIVE TYPE FUNCTIONAL EQUATION

  • LEE, YANG-HI (Department of Mathematics Education, Gongju National University of Education)
  • Received : 2015.02.02
  • Accepted : 2015.11.17
  • Published : 2015.12.25
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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.

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References

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