Results 281 to 290 of about 79,501 (322)

Derivations on Banach-Jordan Pairs

The Quarterly Journal of Mathematics, 2001
A classical topic in the theory of Banach structures is the automatical continuity of derivations. From 1968, when Johnson and Sinclair proved the continuity of derivations acting on semisimple associative Banach algebras, until now, several algebraic conditions on a Banach algebra \(A\) which ensure the continuity of its derivations have been ...
Fernández López, A., Marhnine, H., Zarhouti, C.   +2 more
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Jordan Higher Derivations of Incidence Algebras

Bulletin of the Malaysian Mathematical Sciences Society, 2021
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Lizhen Chen, Zhankui Xiao
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Nonlinear *-Jordan-type derivations on *-algebras

Rocky Mountain Journal of Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Changjing, Zhao, Yuanyuan, Zhao, Fangfang   +2 more
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Mixed *-Jordan-type derivations on *-algebras

Journal of Algebra and Its Applications, 2022
Let [Formula: see text] be an *-algebra with identity [Formula: see text] and [Formula: see text] and [Formula: see text] nontrivial symmetric idempotents in [Formula: see text]. In this paper we study the characterization of nonlinear mixed *-Jordan-type derivations.
Ferreira, Bruno Leonardo Macedo, Wei, Feng   +1 more
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Characterizations of Jordan derivations and Jordan homomorphisms

Linear and Multilinear Algebra, 2011
Let 𝒜 be a unital Banach algebra and ℳ be a unital 𝒜-bimodule. We show that if δ is a linear mapping from 𝒜 into ℳ satisfying δ(ST) = δ(S)T +Sδ(T) for any S, T ∈ 𝒜 with ST = W, where W is a left or right separating point of ℳ, then δ is a Jordan derivation.
Jiankui Li, Jiren Zhou
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Random Jordan Derivations

1994
A classical nonassociative operators topic is the continuity of Jordan derivations on Banach algebras which have some aditional property. We recall that a Jordan derivation on a Banach algebra A is a linear mapping D : A → A such that D(a 2) = D(a)a + aD(a), ∀a ∈ A, or equivalently satisfying that D(a • b) = D (a) • b + a • D(b), ∀a, b ∈ A, (where, as ...
Maria Victoria Velasco, Armando R. Villena   +1 more
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Jordan derivation of certain Jordan matrix algebras

Linear and Multilinear Algebra, 2008
Let R be an arbitrary 2-torsionfree commutative ring, M(n, R) the matrix algebra consisting of all n × n matrices over R, S(n, R) (resp., D(n, R)) the subset of M(n, R) consisting of all symmetric (resp., diagonal) ones. In this article, we first determine all the Jordan subalgebras of S(n, R) containing D(n, R), then for any given Jordan subalgebra of
Dengyin Wang, Qian Hu, Chunguang Xia
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Jordan decomposable derivations

Communications in Algebra, 1988
A derivation is called Jordan decomposable i-f it can be decomposed into a sum of commuting nil and semi-simple parts. In this paper, we study a subfamily of such derivations, the strongly decomposable derivations. After establishing some basic properties, we present an intrinsic criterion for such a derivation.
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Weak Jordan *-derivations of prime rings

Journal of Algebra and Its Applications, 2022
Let * be an involution of a non-commutative prime ring [Formula: see text] with the maximal symmetric ring of quotients and the extended centroid of [Formula: see text] denoted by [Formula: see text] and [Formula: see text], respectively. Consider [Formula: see text] be an additive map, if [Formula: see text] for all [Formula: see text], then such a ...
Siddeeque, Mohammad Aslam, Khan, Nazim, Abdullah, Ali Ahmed   +2 more
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Jordan Derivations of Reflexive Algebras

Integral Equations and Operator Theory, 2010
Let \(\mathcal{A}\) be an algebra and \(\mathcal{M}\) be an \(\mathcal{A}\)-bimodule. A linear map \(\delta : \mathcal{A}\rightarrow \mathcal{M}\) is called a Jordan derivation (resp., a derivation) if \(\delta(A^2) = \delta(A)A + A\delta(A)\) for all \(A\in \mathcal{A}\) (resp., \(\delta(AB) = \delta(A)B + A\delta(B)\) for all \(A,B\in \mathcal{A}\)).
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