a1 Department of Mathematics, University of Maribor, PEF, Koroška 160, SI-2000 Maribor, Slovenia (email@example.com)
a2 Department of Mathematics, University of Ljubljana, Jadranska 19, SI-1000 Ljubljana, Slovenia (firstname.lastname@example.org)
We consider elementary operators on centrally closed prime algebras that are Lie (or Jordan) homomorphisms or commutativity preservers.
AMS 2000 Mathematics subject classification: Primary 16N60. Secondary 16R50; 47B47
(Received February 16 2004)