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Hyers-Ulam stability of Butler-Rassias functional equation


We will prove the Hyers-Ulam stability of the Butler-Rassias functional equation following an idea by M. T. Rassias.

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Correspondence to Soon-Mo Jung.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Jung, SM. Hyers-Ulam stability of Butler-Rassias functional equation. J Inequal Appl 2005, 635896 (2005).

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