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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(e) ISSN 0002-9939(p)

     

Hyers-Ulam-Rassias stability of Jensen's equation and its application

Author(s): Soon-Mo Jung
Journal: Proc. Amer. Math. Soc. 126 (1998), 3137-3143.
MSC (1991): Primary 39B72
MathSciNet review: 1476142
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Abstract: The Hyers-Ulam-Rassias stability for the Jensen functional equation is investigated, and the result is applied to the study of an asymptotic behavior of the additive mappings; more precisely, the following asymptotic property shall be proved: Let $X$ and $Y$ be a real normed space and a real Banach space, respectively. A mapping $f: X \rightarrow Y$ satisfying $f(0)=0$ is additive if and only if $\left\| 2f\left[ (x+y)/2 \right] - f(x) - f(y) \right\| \rightarrow 0$ as $\| x \| + \| y \| \rightarrow \infty$.


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Additional Information:

Soon-Mo Jung
Affiliation: Mathematics Section, College of Science and Technology, Hong-Ik University, 339-800 Cochiwon, South Korea
Email: smjung@wow.hongik.ac.kr

DOI: 10.1090/S0002-9939-98-04680-2
PII: S 0002-9939(98)04680-2
Keywords: Hyers-Ulam-Rassias stability, Jensen functional equation
Received by editor(s): March 19, 1997
Communicated by: Palle E. T. Jorgensen
Copyright of article: Copyright 1998, American Mathematical Society




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