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Traces of permuting generalized $n$-derivations of rings

机译:环的置换广义$ n $-导数的痕迹

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Let $ngeq 1$ be a fixed positive integer and $R$ be a ring.A permuting $n$-additive map $Omega:R^no R$ is known to bepermuting generalized $n$-derivation if there exists a permuting $n$-derivation $Delta:R^no R$such that $Omega(x_1,x_2,cdots, x_ix_i^{'},cdots, x_n)=Omega(x_1,x_2,cdots, x_i,cdots, x_n)x_i^{'}+ x_iDelta(x_1,x_2,cdots, x_i^{'},cdots, x_n)$ holds for all $x_i ,x_i^{'} in R$. A mapping $delta:R o R$ defined by $delta(x)=Delta(x,x,cdots,x)$ for all $xin R$ is said to be the trace of $Delta$.The trace $omega$ of $Omega$ can be defined in the similar way.The main result of the present paper states that if $R$ is a $(n+1)!$-torsion free semi-prime ring which admits a permuting $n$-derivation$Delta$ such that the trace $delta$ of $Delta$ satisfies $[[delta(x),x],x]in Z(R)$ for all $xin R,$ then$delta$ is commuting on $R$. Besides other related results it is also shown that in a $n!$-torsion free prime ring if the trace $omega$of a permuting generalized $n$-derivation $Omega$ is centralizing on $R,$ then $omega$ is commuting on $R$.
机译:假设$ n geq 1 $是一个固定的正整数,而$ R $是一个环。一个已知的置换$ n $可加映射$ Omega:R ^ n 到R $可以置换广义$ n $-导数存在一个置换$ n $-导数$ Delta:R ^ n 至R $使得$ Omega(x_1,x_2, cdots,x_ix_i ^ {'}, cdots,x_n)= Omega(x_1, x_2, cdots,x_i, cdots,x_n)x_i ^ {'} + x_i Delta(x_1,x_2, cdots,x_i ^ {'}, cdots,x_n)$为所有$ x_i,x_i ^ { '} in R $。由$ delta(x)= Delta(x,x, cdots,x)$为R $中的所有$ x定义的$ delta:R 到R $的映射被称为$ 的踪迹可以用类似的方式定义$ Omega $的痕迹$ omega $。本文的主要结果表明,如果$ R $是$(n + 1)!素环,它允许置换$ n $-导数$ Delta $,使得$ Delta $的轨迹$ delta $满足Z [R] $中的$ [[ delta(x),x],x] 对于R中所有$ x ,$然后$ delta $在$ R $上进行通勤。除其他相关结果外,还显示出,在一个无扭曲的素数环中,如果置换的广义n导数ω的轨迹ω集中在$ R上,则$ omega $在$ R $上下班。

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