International Journal of Mathematics and Mathematical Sciences
Volume 2005 (2005), Issue 13, Pages 2125-2132

Jordan automorphisms, Jordan derivations of generalized triangular matrix algebra

Aiat Hadj Ahmed Driss and Ben Yakoub l'Moufadal

Département de Mathématiques et Informatique, Faculté des Sciences, Université Abdelmalek Essaâdi, B.P. 2121, Tétouan, 93002, Morocco

Received 25 July 2004; Revised 14 February 2005

Copyright © 2005 Aiat Hadj Ahmed Driss and Ben Yakoub l'Moufadal. 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.


We investigate Jordan automorphisms and Jordan derivations of a class of algebras called generalized triangular matrix algebras. We prove that any Jordan automorphism on such an algebra is either an automorphism or an antiautomorphism and any Jordan derivation on such an algebra is a derivation.