Orthogonality and quintic functional equations

Citation
Park, Choonkil et al., Orthogonality and quintic functional equations, Acta mathematica Sinica. English series (Print) , 29(7), 2013, pp. 1381-1390
ISSN journal
14398516
Volume
29
Issue
7
Year of publication
2013
Pages
1381 - 1390
Database
ACNP
SICI code
Abstract
Using the fixed point method, we prove the Hyers-Ulam stability of an orthogonally quintic functional equation in Banach spaces and in non-Archimedean Banach spaces.