Generalized (Jordan) left derivations on rings associated with an element of rings

摘要

In this paper, we introduce a new notion of generalized (Jordan) left derivation on rings as follows: let R be a ring, an additive mapping F : R -> R is called a generalized (resp. Jordan) left derivation if there exists an element w a R such that F(xy) = xF(y) + yF(x) + yxw (resp. F(x (2)) = 2xF(x) + x (2) w) for all x, y a R. Then, some related properties and results on generalized (Jordan) left derivation of square closed Lie ideals are obtained.