On the composition of q-skew derivations in Banach algebras

Pjek Hwee Lee, Cheng Kai Liu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Let A be a Banach algebra, let σ be an automorphism of A, and let d, δ be q-skew σ-derivations of A. We show that if dδ(a) is quasi-nilpotent for any a∈A, then dδ(a)3 lies in the radical of A for all a∈A. This result simultaneously generalizes the previous results obtained by Brešar and Šemrl [5], Chebotar et al. [7] and Abdelali [1].

Original languageEnglish
Pages (from-to)2413-2429
Number of pages17
JournalLinear Algebra and Its Applications
Issue number12
Publication statusPublished - 2011 Jun 15

All Science Journal Classification (ASJC) codes

  • Algebra and Number Theory
  • Numerical Analysis
  • Geometry and Topology
  • Discrete Mathematics and Combinatorics

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