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Nilpotent Elements in Skew Polynomial Rings
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نویسنده
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Azimi M. ,Moussavi A.
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منبع
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Journal Of Sciences Islamic Republic Of Iran - 2017 - دوره : 28 - شماره : 1 - صفحه:59 -74
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چکیده
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Letr be a ring with an endomorphism α and an α-derivation δ antoine studied the structure of the set of nilpotent elements in armendariz rings and introduced nil-armendariz rings. in this paper we introduce and investigate the notion of nil-(α,δ)-compatible rings. the class of nil-(α,δ)-compatible rings are extended through various ring extensions and many classes of nil-(α,δ)-compatible rings are constructed. we also prove that,if r is nil-α-compatible and nil-armendariz ring of power series type with nil(r) nilpotent,then nil(r[[x;α]]) = nil(r)[[x;α]]. we show that,if r is a nil-armendariz ring of power series type,with nil (r) nilpotent and nil-(α,δ)-compatible ring,then nil (r[x;α,δ]) = nil (r) [x; α,δ]. as a consequence,several known results are unified and extended to the more general setting. also examples are provided to illustrate our results.
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کلیدواژه
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(Α ,Δ)-Compatible Ring; Skew Polynomial Ring; Skew Power Series Ring
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آدرس
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Department Of Pure Mathematics,Faculty Of Mathematical Sciences,Tarbiat Modares University,P.O. Box 14115-134,Tehran, ایران, Department Of Pure Mathematics,Faculty Of Mathematical Sciences,Tarbiat Modares University,P.O. Box 14115-134,Tehran, ایران
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Authors
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