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Certain differential identities on prime rings and Banach algebras

  • Vincenzo De Filippis,
  • Abderrahman Hermas,
  • Lahcen Oukhtite

摘要

Let R be a prime ring and L a Lie ideal of R. The purpose of this paper is to classify generalized derivations \(F_1,\) F 1 , \(F_2,\) F 2 , \(F_3\) F 3 of R satisfying the following differential identity \(\begin{aligned} F_1(x)\bot F_2(y)=F_3(x)\bot y \;\; for\, all \, x,y \in L, \end{aligned}\) F 1 ( x ) F 2 ( y ) = F 3 ( x ) y f o r a l l x , y L , where \(\bot\) represents either the Lie product [., .], or the Jordan product \(\circ\) . Furthermore, as an application, the same identities are studied locally on nonvoid open subsets of prime Banach algebras.