학술저널
STABILITY OF QUARTIC SET-VALUED FUNCTIONAL EQUATIONS
- 충청수학회
- Journal of the Chungcheong Mathematical Society
- Volume 28, No. 4
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2015.11635 - 645 (11 pages)
- 2
We will show the general solution of the functional equation f (x + ay) + f (x - ay) + 2(a 2 - 1)f (x) = a2 f (x + y) + a2 f (x - y) + 2a 2 (a2 - 1)f (y) and investigate the Hyers-Ulam stability of the quartic set-valued functional equation.
1. Introduction
2. A quartic functional equation
3. Stability of the quartic set-valued functional equation
4. Stability of quartic set-valued functional equation by the fixed point method
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