Abstract and Applied Analysis
Volume 2008 (2008), Article ID 915292, 8 pages
doi:10.1155/2008/915292

Approximation of generalized left derivations

Sheon-Young Kang1 and Ick-Soon Chang2

1Department of Industrial Mathematics, National Institute for Mathematical Sciences, Daejeon 305-340, South Korea
2Department of Mathematics, Mokwon University, Daejeon 302-729, South Korea

Abstract

We need to take account of the superstability for generalized left derivations (resp., generalized derivations) associated with a Jensen-type functional equation, and we also deal with problems for the Jacobson radical ranges of left derivations (resp., derivations).