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On the traces of certain classes of permuting mappings in rings

  • Mohammad Ashraf EMAIL logo , Malik Rashid Jamal and Muzibur Rahman Mozumder
Published/Copyright: January 19, 2016
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Abstract

Let R be a semiprime ring with center Z and extended centroid C. For a fixed integer n ≥ 2, the trace δ:RR of a permuting n-additive mapping D:RnR is defined as δ(x)=D(x,...,x) for all xR. The notion of permuting n-derivation was introduced by Park [J. Chungcheong Math. Soc. 22 (2009), no.3, 451–458] as follows: a permuting n-additive mapping Δ:RnR is said to be permuting n-derivation if

Δ(x1,x2,,xixi',,xn)=Δ(x1,x2,,xi,,xn)xi'+xiΔ(x1,x2,,xi',,xn)forallxi,xi'R.

A permuting n-additive mapping Ω:RnR is known to be a permuting generalized n-derivation if there exists a permuting n-derivation Δ:RnR such that

Ω(x1,x2,,xixi',,xn)=Ω(x1,x2,,xi,,xn)xi'+xiΔ(x1,x2,,xi',,xn)forallxi,xi'R.

The main result of this paper states that if I is a nonzero ideal of a semiprime ring R and Δ:RnR is a permuting n-derivation such that Δ(I,...,I){0} and [δ(x),x]=0 for all xI, where δ is the trace of Δ, then R contains a nonzero central ideal. Furthermore, some related results are also proven.

MSC: 16W25; 16U80

Funding source: Department of Science and Technology of India

Award Identifier / Grant number: INT/SLOVENIA/P-18/2009

The authors would like to express their indebtedness to the referee for valuable remarks and suggestions.

Received: 2013-7-15
Revised: 2015-6-30
Accepted: 2015-7-3
Published Online: 2016-1-19
Published in Print: 2016-3-1

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