Abstract and Applied Analysis
Volume 2007 (2007), Article ID 23282, 6 pages
doi:10.1155/2007/23282
Research Article

Generalized Stability of C*-Ternary Quadratic Mappings

Choonkil Park1 and Jianlian Cui2

1Department of Mathematics, Hanyang University, Seoul 133-791, South Korea
2Department of Mathematical Sciences, Tsinghua University, Beijing 100084, China

Received 10 September 2006; Revised 22 January 2007; Accepted 15 February 2007

Academic Editor: Bruce D. Calvert

Copyright © 2007 Choonkil Park and Jianlian Cui. 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

We prove the generalized stability of C*-ternary quadratic mappings in C*-ternary rings for the quadratic functional equation f(x+y)+f(x−y)=2f(x)+2f(y).