Remarks on the stability of Drygas' equation and the Pexider-quadratic equation (Q1884757)
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scientific article; zbMATH DE number 2113899
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Remarks on the stability of Drygas' equation and the Pexider-quadratic equation |
scientific article; zbMATH DE number 2113899 |
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Remarks on the stability of Drygas' equation and the Pexider-quadratic equation (English)
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5 November 2004
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The author proves the Hyers-Ulam stability of the Pexider-quadratic equation and Drygas' equation on a class of groups, with sharper bounds. An example is also given to illustrate that the quadratic functional equation is not stable in general on non abelian groups.
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Hyers-Ulam stability
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Drygas' equation
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Pexider-quadratic equation
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quadratic functional equation
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non abelian groups
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stability
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