A classification of generalized derivations in rings with involution

Let R be a ring. An additive mapping F : ? is called generalized derivation if there exists d of such that F(xy) = F(x)y + xd(y) for all x,y R. The main purpose this paper to characterize some specific classes derivations rings. Precisely, we describe the structure noncommutative prime rings with involution belong particular class derivations. Consequently, recent results in line investigation have been extended. Moreover, suitable examples showing assumed hypotheses are crucial, also given.