Linear functional equations in a Hilbert module (Q1417176)

The generalized Hyers-Ulam-Rassias stability of invertible mappings in a~Banach module over a~unital Banach algebra and the generalized Hyers-Ulam-Rassias stability of linear functional equations in a Hilbert module over a unital \(C^{\ast}\)-algebra are proved. Almost the same results were proved by \textit{C.-G. Park} [Soochow J. Math. 29, No. 3, 283--291 (2003; Zbl 1044.39020)], so for more precise review the reader is referred to that review. In two papers in question there are no references to each other.