• Title/Summary/Keyword: Martindale ring of quotients

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Derivations with Power Values on Lie Ideals in Rings and Banach Algebras

  • Rehman, Nadeem ur;Muthana, Najat Mohammed;Raza, Mohd Arif
    • Kyungpook Mathematical Journal
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    • v.56 no.2
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    • pp.397-408
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    • 2016
  • Let R be a 2-torsion free prime ring with center Z, U be the Utumi quotient ring, Q be the Martindale quotient ring of R, d be a derivation of R and L be a Lie ideal of R. If $d(uv)^n=d(u)^md(v)^l$ or $d(uv)^n=d(v)^ld(u)^m$ for all $u,v{\in}L$, where m, n, l are xed positive integers, then $L{\subseteq}Z$. We also examine the case when R is a semiprime ring. Finally, as an application we apply our result to the continuous derivations on non-commutative Banach algebras. This result simultaneously generalizes a number of results in the literature.