International Journal of Mathematics and Mathematical Sciences
Volume 2006 (2006), Article ID 53145, 13 pages
doi:10.1155/IJMMS/2006/53145
Products of derivations which act as Lie derivations on
commutators of right ideals
Dipartimento di Matematica, Universitá di Messina, Salita Sperone 31, Messina 98166, Italy
Received 5 April 2006; Revised 22 October 2006; Accepted 30 October 2006
Copyright © 2006 V. De Filippis. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Let R be a prime ring of characteristic different from 2, I a nonzero right ideal of R, d and δ nonzero derivations of R, and s4(x1,x2,x3,x4) the standard identity of degree 4. If the composition (dδ) is a Lie derivation of [I,I] into R, then either s4(I,I,I,I)I=0 or δ(I)I=d(I)I=0.