Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8904530 | Acta Mathematica Scientia | 2017 | 11 Pages |
Abstract
Let
A be a unital algebra and
M be a unital
A-bimodule. A linear map δ:
AâM is said to be Jordan derivable at a nontrivial idempotent
PâA if
δ(A)âB+Aâδ(B)=δ(AâB) for any
A,BâA with A â B= P, here A â B = AB + BA is the usual Jordan product. In this article, we show that if
A=AlgN is a Hilbert space nest algebra and
M=B(H), or
A=M=B(X), then, a linear map
δ:AâM is Jordan derivable at a nontrivial projection
PâN or an arbitrary but fixed nontrivial idempotent
PâB(X) if and only if it is a derivation. New equivalent characterization of derivations on these operator algebras was obtained.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematics (General)
Authors
Tianjiao XUE, Runling AN, Jinchuan HOU,