<p>Let <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(\mathcal {M}\)</EquationSource> </InlineEquation> be a prime <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(*\)</EquationSource> </InlineEquation>-algebra over <InlineEquation ID="IEq7"> <EquationSource Format="TEX">\(\mathbb {C}\)</EquationSource> </InlineEquation> with <InlineEquation ID="IEq8"> <EquationSource Format="TEX">\(\operatorname {dim} (\mathcal {M})&gt;1\)</EquationSource> </InlineEquation> and <InlineEquation ID="IEq9"> <EquationSource Format="TEX">\(\lambda \)</EquationSource> </InlineEquation> be a nonzero scalar. In this paper, we prove that a nonlinear map <InlineEquation ID="IEq10"> <EquationSource Format="TEX">\(\psi : \mathcal {M} \rightarrow \mathcal {M}\)</EquationSource> </InlineEquation> satisfies <Equation ID="Equ40"> <EquationSource Format="TEX">\(\begin{aligned} \psi ([[L, M]_{\bullet }^{\lambda }, N]_{\bullet }^{\lambda })=[[\psi (L), M]_{\bullet }^{\lambda }, N]_{\bullet }^{\lambda }+[[L, \psi (M)]_{\bullet }^{\lambda }, N]_{\bullet }^{\lambda } + [[L, M]_{\bullet }^{\lambda }, \psi (N)]_{\bullet }^{\lambda } \end{aligned}\)</EquationSource> </Equation>for all <InlineEquation ID="IEq11"> <EquationSource Format="TEX">\(L, M, N \in \mathcal {M}\)</EquationSource> </InlineEquation> is additive on <InlineEquation ID="IEq12"> <EquationSource Format="TEX">\(\mathcal {M}\)</EquationSource> </InlineEquation>. Moreover, it is demonstrated that <InlineEquation ID="IEq13"> <EquationSource Format="TEX">\(\psi \)</EquationSource> </InlineEquation> is an additive <InlineEquation ID="IEq14"> <EquationSource Format="TEX">\(*\)</EquationSource> </InlineEquation>-derivation and <InlineEquation ID="IEq15"> <EquationSource Format="TEX">\(\psi (\lambda L)=\lambda \psi (L)\)</EquationSource> </InlineEquation> for all <InlineEquation ID="IEq16"> <EquationSource Format="TEX">\(L \in \mathcal {M}\)</EquationSource> </InlineEquation>, where <InlineEquation ID="IEq17"> <EquationSource Format="TEX">\([L, M]_\bullet ^{\lambda }=L M^*-\lambda M L^*\)</EquationSource> </InlineEquation>, when <InlineEquation ID="IEq18"> <EquationSource Format="TEX">\(|\lambda |^2=1\)</EquationSource> </InlineEquation> but <InlineEquation ID="IEq19"> <EquationSource Format="TEX">\(\lambda \ne \pm 1\)</EquationSource> </InlineEquation>. Moreover, an application of our result has been discussed on local derivations.</p>

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Nonlinear \(\lambda \)-bi-skew Lie triple derivations on prime \(*\)-algebras

  • Abdul Nadim Khan,
  • Adnan Abbasi,
  • Mohd Tasleem

摘要

Let \(\mathcal {M}\) be a prime \(*\) -algebra over \(\mathbb {C}\) with \(\operatorname {dim} (\mathcal {M})>1\) and \(\lambda \) be a nonzero scalar. In this paper, we prove that a nonlinear map \(\psi : \mathcal {M} \rightarrow \mathcal {M}\) satisfies \(\begin{aligned} \psi ([[L, M]_{\bullet }^{\lambda }, N]_{\bullet }^{\lambda })=[[\psi (L), M]_{\bullet }^{\lambda }, N]_{\bullet }^{\lambda }+[[L, \psi (M)]_{\bullet }^{\lambda }, N]_{\bullet }^{\lambda } + [[L, M]_{\bullet }^{\lambda }, \psi (N)]_{\bullet }^{\lambda } \end{aligned}\) for all \(L, M, N \in \mathcal {M}\) is additive on \(\mathcal {M}\) . Moreover, it is demonstrated that \(\psi \) is an additive \(*\) -derivation and \(\psi (\lambda L)=\lambda \psi (L)\) for all \(L \in \mathcal {M}\) , where \([L, M]_\bullet ^{\lambda }=L M^*-\lambda M L^*\) , when \(|\lambda |^2=1\) but \(\lambda \ne \pm 1\) . Moreover, an application of our result has been discussed on local derivations.