Approximately left derivations: An alternative fixed point approach
Using fixed point methods, we investigate the generalized Hyers-Ulam-Rassias stability of left derivations and left Jordan derivations on Banach algebras associated with the following generalized Cauchy-Jensen type functional equation mu f (x + y/2 + z) + mu f (x - y/2 + z) = f (mu x) + 2f(mu z) (mu is an element of T).
left derivation alternative fixed point generalized fhyers-ulam-rassias stability jordan left derivation