Abstract
We study additive maps which are skew-commuting or skew-centralizing on appropriate subsets of a ring R; and we investigate commutativity in prime and semiprime rings admitting a nonzero derivation d such that [d(x),d(y)] = 0 for all x,y in some nonzero one-sided ideal.
This paper has two main parts. The first, motivated by a recent result of Brešar [3] on triviality of skew-commuting additive maps on prime rings, is a study of additive maps which are skew-commuting or skew-centralizing on subsets of certain rings. The second continues a study, begun years ago by Herstein [7], of prime and semiprime rings R admitting a nonzero derivation d such that d(x)d(y) − d(y)d(x) = 0 for all x, y in a suitably chosen subset of R.
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Bell, H.E., Lucier, J. On Additive Maps and Commutativity in Rings. Results. Math. 36, 1–8 (1999). https://doi.org/10.1007/BF03322096
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DOI: https://doi.org/10.1007/BF03322096