On the Stability of Generalized Quartic Mappings in Quasi-<inline-formula> <graphic file="1029-242X-2010-198098-i1.gif"/></inline-formula>-Normed Spaces

<p/> <p>We investigate the generalized Hyers-Ulam-Rassias stability problem in quasi-<inline-formula> <graphic file="1029-242X-2010-198098-i2.gif"/></inline-formula>-normed spaces and then the stability by using a subadditive function for the generalized quart...

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Bibliographic Details
Main Author: Kang Dongseung
Format: Article
Language:English
Published: SpringerOpen 2010-01-01
Series:Journal of Inequalities and Applications
Online Access:http://www.journalofinequalitiesandapplications.com/content/2010/198098
Description
Summary:<p/> <p>We investigate the generalized Hyers-Ulam-Rassias stability problem in quasi-<inline-formula> <graphic file="1029-242X-2010-198098-i2.gif"/></inline-formula>-normed spaces and then the stability by using a subadditive function for the generalized quartic function <inline-formula> <graphic file="1029-242X-2010-198098-i3.gif"/></inline-formula> such that <inline-formula> <graphic file="1029-242X-2010-198098-i4.gif"/></inline-formula>, where <inline-formula> <graphic file="1029-242X-2010-198098-i5.gif"/></inline-formula>, <inline-formula> <graphic file="1029-242X-2010-198098-i6.gif"/></inline-formula>, <inline-formula> <graphic file="1029-242X-2010-198098-i7.gif"/></inline-formula>, for all <inline-formula> <graphic file="1029-242X-2010-198098-i8.gif"/></inline-formula>.</p>
ISSN:1025-5834
1029-242X