The Jensen functional equation in non-Archimedean normed spaces

We investigate the Hyers–Ulam–Rassias stability of the Jensen functional equation in non-Archimedean normed spaces and study its asymptotic behavior in two directions: bounded and unbounded Jensen differences. In particular, we show that a mapping f between non-Archimedean spaces with f(0)=0 is addi...

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Bibliographic Details
Main Author: Mohammad Sal Moslehian
Format: Article
Language:English
Published: Wiley 2009-01-01
Series:Journal of Function Spaces and Applications
Online Access:http://dx.doi.org/10.1155/2009/802032
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Summary:We investigate the Hyers–Ulam–Rassias stability of the Jensen functional equation in non-Archimedean normed spaces and study its asymptotic behavior in two directions: bounded and unbounded Jensen differences. In particular, we show that a mapping f between non-Archimedean spaces with f(0)=0 is additive if and only if ‖f(x+y2)−f(x)+f(y)2‖→0 as max {‖x‖,‖y‖}→∞.
ISSN:0972-6802