DECOMPOSITION OF JORDAN AUTOMORPHISMS OF TRIANGULAR MATRIX ALGEBRA OVER COMMUTATIVE RINGS
Glasgow mathematical journal, Tome 52 (2010) no. 3, pp. 529-536

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Let 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.
DOI : 10.1017/S0017089510000406
Mots-clés : 17C30, 17C50, 13C10
WANG, XING TAO; LI, YUAN MIN. DECOMPOSITION OF JORDAN AUTOMORPHISMS OF TRIANGULAR MATRIX ALGEBRA OVER COMMUTATIVE RINGS. Glasgow mathematical journal, Tome 52 (2010) no. 3, pp. 529-536. doi: 10.1017/S0017089510000406
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