In this paper we prove the following result. Let R be a 6−torsion free semiprime ∗−ring and let D: R → R be an additive mapping satisfying the relation D(xyx) = D(x)y∗x∗+xD(y)x ∗ +xyD(x), for all pairs x, y ∈ R. In this case D is a Jordan ∗−derivation.
M. N. DaifM. S. Tammam El-Sayiad
D. Mary FlorenceR. MurugesanP. Namasivayam