scholarly journals Zero Triple Product Determined Matrix Algebras

2012 ◽  
Vol 2012 ◽  
pp. 1-18 ◽  
Author(s):  
Hongmei Yao ◽  
Baodong Zheng
Keyword(s):  
Linear Operator ◽  
Matrix Algebra ◽  
Triple Product ◽  
Unital Algebra ◽  
Matrix Algebras ◽  
Unital Ring ◽  
Jordan Triple Product

LetAbe an algebra over a commutative unital ringC. We say thatAis zero triple product determined if for everyC-moduleXand every trilinear map{⋅,⋅,⋅}, the following holds: if{x,y,z}=0wheneverxyz=0, then there exists aC-linear operatorT:A3⟶Xsuch thatx,y,z=T(xyz)for allx,y,z∈A. If the ordinary triple product in the aforementioned definition is replaced by Jordan triple product, thenAis called zero Jordan triple product determined. This paper mainly shows that matrix algebraMn(B),n≥3, whereBis any commutative unital algebra even different from the above mentioned commutative unital algebraC, is always zero triple product determined, andMn(F),n≥3, whereFis any field with chF≠2, is also zero Jordan triple product determined.

scholarly journals On Modular Representation Algebras and a Class of Matrix Algebras

1982 ◽  
Vol 33 (3) ◽  
pp. 351-355 ◽  
Author(s):  
J-C. Renaud
Keyword(s):  
Tensor Product ◽  
Cyclic Group ◽  
Prime Order ◽  
Matrix Algebra ◽  
Modular Representation ◽  
Complex Field ◽  
Matrix Algebras ◽  
Direct Sum ◽  
Standard Operations

AbstractLet G be a cyclic group of prime order p and K a field of characteristic p. The set of classes of isomorphic indecomposable (K, G)-modules forms a basis over the complex field for an algebra p (Green, 1962) with addition and multiplication being derived from direct sum and tensor product operations.Algebras n with similar properties can be defined for all n ≥ 2. Each such algebra is isomorphic to a matrix algebra Mn of n × n matrices with complex entries and standard operations. The characters of elements of n are the eigenvalues of the corresponding matrices in Mn.

scholarly journals σ-derivations on generalized matrix algebras

2020 ◽  
Vol 28 (2) ◽  
pp. 115-135
Author(s):  
Aisha Jabeen ◽  
Mohammad Ashraf ◽  
Musheer Ahmad
Keyword(s):  
Commutative Ring ◽  
Matrix Algebra ◽  
Morita Context ◽  
Matrix Algebras ◽  
Generalized Matrix ◽  
Generalized Matrix Algebra

AbstractLet 𝒭 be a commutative ring with unity, 𝒜, 𝒝 be 𝒭-algebras, 𝒨 be (𝒜, 𝒝)-bimodule and 𝒩 be (𝒝, 𝒜)-bimodule. The 𝒭-algebra 𝒢 = 𝒢(𝒜, 𝒨, 𝒩, 𝒝) is a generalized matrix algebra defined by the Morita context (𝒜, 𝒝, 𝒨, 𝒩, ξ𝒨𝒩, Ω𝒩𝒨). In this article, we study Jordan σ-derivations on generalized matrix algebras.

scholarly journals Unital locally matrix algebras and Steinitz numbers

2019 ◽  
Vol 19 (09) ◽  
pp. 2050180
Author(s):  
Oksana Bezushchak ◽  
Bogdana Oliynyk
Keyword(s):  
Matrix Algebra ◽  
Finite Collection ◽  
Matrix Algebras ◽  
Number Formula ◽  
Unit Formula

An [Formula: see text]-algebra [Formula: see text] with unit [Formula: see text] is said to be a locally matrix algebra if an arbitrary finite collection of elements [Formula: see text] from [Formula: see text] lies in a subalgebra [Formula: see text] with [Formula: see text] of the algebra [Formula: see text], that is isomorphic to a matrix algebra [Formula: see text], [Formula: see text]. To an arbitrary unital locally matrix algebra [Formula: see text], we assign a Steinitz number [Formula: see text] and study a relationship between [Formula: see text] and [Formula: see text].

Jordan Triple Product Homomorphisms on Triangular Matrices to and from Dimension One

2018 ◽  
Vol 33 ◽  
pp. 147-159
Author(s):  
Damjana Kokol Bukovsek ◽  
Blaz Mojskerc
Keyword(s):  
Triple Product ◽  
Complex Numbers ◽  
Triangular Matrices ◽  
Upper Triangular Matrices ◽  
Continuous Maps ◽  
Dimension One ◽  
Jordan Triple Product

A map $\Phi$ is a Jordan triple product (JTP for short) homomorphism whenever $\Phi(A B A)= \Phi(A) \Phi(B) \Phi(A)$ for all $A,B$. We study JTP homomorphisms on the set of upper triangular matrices $\mathcal{T}_n(\mathbb{F})$, where $\Ff$ is the field of real or complex numbers. We characterize JTP homomorphisms $\Phi: \mathcal{T}_n(\mathbb{C}) \to \mathbb{C}$ and JTP homomorphisms $\Phi: \mathbb{F} \to \mathcal{T}_n(\mathbb{F})$. In the latter case we consider continuous maps and the implications of omitting the assumption of continuity.

INDUCTION OF SEMIGROUPS OF ENDOMORPHISMS OF ${\mathfrak B} ({\mathfrak h})$ FROM COMPLETELY POSITIVE SEMIGROUPS OF (n × n) MATRIX ALGEBRAS

1999 ◽  
Vol 10 (07) ◽  
pp. 773-790 ◽  
Author(s):  
ROBERT T. POWERS
Keyword(s):  
Matrix Algebra ◽  
Completely Positive ◽  
Positive Semigroups ◽  
Matrix Algebras ◽  
Completely Positive Semigroups

The paper concerns Eo-semigroup of [Formula: see text] induced from unit preserving completely positive semigroups of mapping of an (n × n) matrix algebra into itself. It is shown that Eo-semigroups one obtains are completely spatial and the index of the induced semigroup can be easily computed.

scholarly journals Jordan automorphisms, Jordan derivations of generalized triangular matrix algebra

2005 ◽  
Vol 2005 (13) ◽  
pp. 2125-2132 ◽  
Author(s):  
Aiat Hadj Ahmed Driss ◽  
Ben Yakoub l'Moufadal
Keyword(s):  
Matrix Algebra ◽  
Triangular Matrix ◽  
Jordan Derivation ◽  
Matrix Algebras ◽  
Triangular Matrix Algebra

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.

Sign in / Sign up

Export Citation Format

Share Document