Using fixed point methods, we prove the generalized Hyers-Ulam stability of homomorphisms in -algebras and Lie -algebras and also of derivations on-algebras and Lie -algebras for the Jensen-type functional equation.
"Stability of the Jensen-Type Functional Equation in -Algebras: A Fixed Point Approach." Abstr. Appl. Anal. 2009 1 - 17, 2009. https://doi.org/10.1155/2009/360432