%0 Journal Article
%T On the stability of J$^*-$derivations
%A M. Eshaghi Gordji
%A S. Shams
%A A. Ebadian
%A M. B. Ghaemi
%J Mathematics
%D 2009
%I arXiv
%R 10.1016/j.geomphys.2009.11.004
%X In this paper, we establish the stability and superstability of $J^*-$derivations in $J^*-$algebras for the generalized Jensen--type functional equation $$rf(\frac{x+y}{r})+rf(\frac{x-y}{r})= 2f(x).$$ Finally, we investigate the stability of $J^*-$derivations by using the fixed point alternative.
%U http://arxiv.org/abs/0907.2862v1