A note on cocharacter sequence of Jordan upper triangular matrix algebra

2016 ◽  
Vol 45 (4) ◽  
pp. 1687-1695 ◽  
Author(s):  
Lucio Centrone ◽  
Fabrizio Martino
2021 ◽  
Vol 29 (2) ◽  
pp. 183-186
Author(s):  
Thiago Castilho de Mello

Abstract We describe the images of multilinear polynomials of arbitrary degree evaluated on the 3×3 upper triangular matrix algebra over an infinite field.


2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Xiuhai Fei ◽  
Haifang Zhang

In this paper, we proved that each nonlinear nonglobal semi-Jordan triple derivable mapping on a 2-torsion free triangular algebra is an additive derivation. As its application, we get the similar conclusion on a nest algebra or a 2-torsion free block upper triangular matrix algebra, respectively.


2010 ◽  
Vol 52 (3) ◽  
pp. 529-536 ◽  
Author(s):  
XING TAO WANG ◽  
YUAN MIN LI

AbstractLet Tn+1(R) be the algebra of all upper triangular n+1 by n+1 matrices over a 2-torsionfree commutative ring R with identity. In this paper, we give a complete description of the Jordan automorphisms of Tn+1(R), proving that every Jordan automorphism of Tn+1(R) can be written in a unique way as a product of a graph automorphism, an inner automorphism and a diagonal automorphism for n ≥ 1.


2005 ◽  
Vol 2005 (13) ◽  
pp. 2125-2132 ◽  
Author(s):  
Aiat Hadj Ahmed Driss ◽  
Ben Yakoub l'Moufadal

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.


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