International Journal of Mathematics and Mathematical Sciences
Volume 2003 (2003), Issue 1, Pages 15-26
doi:10.1155/S016117120311037X

Local stability of the additive functional equation and its applications

Soon-Mo Jung and Byungbae Kim

Mathematics Section, College of Science and Technology, Hong-Ik University, Chochiwon 339-701, Korea

Received 5 October 2001

Copyright © 2003 Soon-Mo Jung and Byungbae Kim. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The main purpose of this paper is to prove the Hyers-Ulam stability of the additive functional equation for a large class of unbounded domains. Furthermore, by using the theorem, we prove the stability of Jensen's functional equation for a large class of restricted domains.