Stability of the Cauchy-Jensen functional equation in C * -algebras: a fixed point approach. Park, Choonkil; An, Jong Su — 2008 Fixed Point Theory and Applications [electronic only]
Additive functional inequalities in Banach modules. Park, Choonkil; An, Jong Su; Moradlou, Fridoun — 2008 Journal of Inequalities and Applications [electronic only]
Isomorphisms and derivations in Lie C * -algebras. Park, Choonkil; An, Jong Su; Cui, Jianlian — 2007 Abstract and Applied Analysis
On the stability of quadratic functional equations. Lee, Jung Rye; An, Jong Su; Park, Choonkil — 2008 Abstract and Applied Analysis