Results 31 to 40 of about 812,891 (203)

Jordan maps on triangular algebras

open access: yesLinear Algebra and its Applications, 2007
For \(x,y\in R\), an associative ring, let \(x\circ y=xy+yx\). Given rings \(R\) and \(S\), maps \(f\colon R\to S\) and \(g\colon S\to R\) form a Jordan pair if for all \(x\in R\) and \(y\in S\), \(f(x\circ g(y))=f(x)\circ y\) and \(g(y\circ f(x))=g(y)\circ x\).
openaire   +2 more sources

Lie triple derivation of the Lie algebra of strictly upper triangular matrix over a commutative ring

open access: yes, 2009
Let N ( n , R ) be the nilpotent Lie algebra consisting of all strictly upper triangular n × n matrices over a 2-torsionfree commutative ring R with identity 1.
Hengtai Wang, Qingguo Li
semanticscholar   +1 more source

On Derivations of Certain Algebras Related to Irreducible Triangular Algebras [PDF]

open access: yesTransactions of the American Mathematical Society, 1983
This paper deals with derivations on algebras that are generated by a maximal abelian selfadjoint algebra of operators A \mathcal {A}
openaire   +2 more sources

Automorphisms of the Lie algebra of strictly upper triangular matrices over a commutative ring

open access: yes, 2001
Let R be an arbitrary commutative ring with identity. Denote by n(R) the Lie algebra over R consisting of all strictly upper triangular (n+1)×(n+1) matrices over R with n⩾3. In addition, for n=3 assume that the annihilator of 2 in R is zero.
You'an Cao, Zuowen Tan
semanticscholar   +1 more source

Representation dimensions of triangular matrix algebras

open access: yesLinear Algebra and its Applications, 2013
19 ...
Yin, Hongbo, Zhang, Shunhua
openaire   +3 more sources

A note on algebra automorphisms of strictly upper triangular matrices over commutative rings

open access: yes, 2000
In this note, we explicitly describe the automorphism group of the R-algebra of strictly upper triangular n×n matrices over an arbitrary commutative ring.
You'an Cao, Jingtong Wang
semanticscholar   +1 more source

Complexity of triangular representations of algebraic sets

open access: yesJournal of Algebra, 2019
Triangular decomposition is one of the standard ways to represent the radical of a polynomial ideal. A general algorithm for computing such a decomposition was proposed by A. Szanto. In this paper, we give the first complete bounds for the degrees of the polynomials and the number of components in the output of the algorithm, providing explicit ...
Eli Amzallag   +3 more
openaire   +4 more sources

Involutions for upper triangular matrix algebras

open access: yesAdvances in Applied Mathematics, 2006
The first result in the paper under review is the description of the involutions of the first kind (which fix the centre) of the algebra \(UT_n(F)\) of \(n\times n\) upper triangular matrices over a field of characteristic different from 2. The authors show that, up to isomorphism of algebras with involution, there are two types of involutions.
Onofrio Mario Di Vincenzo   +2 more
openaire   +2 more sources

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