English

Jordan product determined points in matrix algebras

Operator Algebras 2011-11-18 v1 Rings and Algebras

Abstract

Let Mn(R)M_n(R) be the algebra of all n×nn\times n matrices over a unital commutative ring RR with 6 invertible. We say that AMn(R)A\in M_n(R) is a Jordan product determined point if for every RR-module XX and every symmetric RR-bilinear map {,}\{\cdot, \cdot\} : Mn(R)×Mn(R)XM_n(R)\times M_n(R)\to X the following two conditions are equivalent: (i) there exists a fixed element wXw\in X such that {x,y}=w\{x,y\}=w whenever xy=Ax\circ y=A, x,yMn(R)x,y\in M_n(R); (ii) there exists an RR-linear map T:Mn(R)2XT:M_n(R)^2\to X such that {x,y}=T(xy)\{x,y\}=T(x\circ y) for all x,yMn(R)x,y\in M_n(R). In this paper, we mainly prove that all the matrix units are the Jordan product determined points in Mn(R)M_n(R) when n3n\geq 3. In addition, we get some corollaries by applying the main results.

Keywords

Cite

@article{arxiv.1111.4108,
  title  = {Jordan product determined points in matrix algebras},
  author = {Yang Wenlei and Zhu Jun},
  journal= {arXiv preprint arXiv:1111.4108},
  year   = {2011}
}

Comments

12 pages

R2 v1 2026-06-21T19:37:34.762Z