Lie Derivations of a Matrix Ring over an Associative Ring

Umut Sayın, Feride Kuzucuoğlu

Let $K$ be a 2-torsion free ring with identity. We give a description of the Lie derivations of $R=R_n(K,J)=N{T}_n(K)+M_n(J)$, the ring of all $n\times n$ matrices over $K$ suc…