Abstract
Let R be a prime ring of characteristic different from 2 with Utumi quotient ring U, C be the extended centroid of \(R,\, F\) and G be two nonzero generalized derivations of R and \(f(x_1,\ldots ,x_n)\) be a multilinear polynomial over C which is not central valued on R. If
for all \(u,v\in f(R)\), then there exist \(a,b\in U\) such that \(F(x)=ax\) and \(G(x)=bx\) for all \(x\in R\) with \([a, b]=0\) and \(f(x_1,\ldots ,x_n)^2\) is central valued on R.
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Dhara, B., Raza, M.A. & Rehman, N.U. Commutator identity involving generalized derivations on multilinear polynomials. Ann Univ Ferrara 62, 205–216 (2016). https://doi.org/10.1007/s11565-016-0255-x
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DOI: https://doi.org/10.1007/s11565-016-0255-x