摘要
设Z(R)是环P的中心,本文证明了下列的结果:(1)若R是一个半单纯环,且对任意a,b∈R,都存在一自然数K=K(a,b),一含有X ̄2和n=n(a,b)(≥K)个y的字f_X(x,y)及一整系数多项式使得则R是交换环;(2)若R是一个Baer半单纯环,且对任意的a.b∈R,都存在一自然数K=K(a,b)≤ι,一含有x ̄2和n=n'(a,b)(≥K)个y的f_X(x,y)及一整系数多项式使得其中ι是一固定的自然数,那么,R是一个交换环。
In this paper we proved the following results:(1) If R is a kothe semisimple ring and for arbitrary a,b∈R,there exist a positive integer K=K(a,b),a word f_x(x, y) containing x ̄2 and n=n(a,b)(≥K)Y's,and a polynomial with integer coefficients such that ab ̄k-f_x(a,b)·then R is commutative;(2)If R is a Baer semisimple ring, andfor arbitrary a, b∈R,there erist a positive integer K=K(a,b)≤ι,a word f_x(x, y) containing x ̄2 and n=n(a,b)(≥K)y's,and a polynomial with integea cofficients such that where ι is a fixed positive integer,then R is commutative.
出处
《数学杂志》
CSCD
北大核心
1994年第3期431-434,共4页
Journal of Mathematics
基金
福建省自然科学基金
关键词
素环
半单纯环
环
交换环
word,prime ring,J-semisimple ring