Affiliation:
1. Institute of Mathematics, Cracow University of Technologyul. Warszawska 24, Cracow 31-155, Poland
Abstract
Abstract
It is shown that if N(R) is a Lie ideal of R (respectively Jordan ideal and R is 2-torsion-free), then N(R) is an ideal. Also, it is presented a characterization of Noetherian NR rings with central idempotents (respectively with the commutative set of nilpotent elements, the Abelian unit group, the commutative commutator set).