Korean Journal of Mathematics
- Volume 16 Issue 3
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- Pages.369-378
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- 2008
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- 1976-8605(pISSN)
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- 2288-1433(eISSN)
ON THE STABILITY OF PEXIDER TYPE TRIGONOMETRIC FUNCTIONAL EQUATIONS
- Kim, Gwang Hui (Department of Mathematics, Kangnam University)
- Received : 2008.07.25
- Published : 2008.09.30
Abstract
The aim of this paper is to study the stability problem for the pexider type trigonometric functional equation f(x + y) − f(x−y) = 2g(x)h(y), which is related to the d'Alembert, the Wilson, the sine, and the mixed trigonometric functional equations.
Keywords
- stability;
- superstability;
- sine functional equation;
- d'Alembert equation;
- trigonometric functional equation