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一类Baer半单纯环的交换性
引用本文:崔殿军,富成华.一类Baer半单纯环的交换性[J].鞍山钢铁学院学报,2010(3):265-267.
作者姓名:崔殿军  富成华
作者单位:抚顺师范高等专科学校,辽宁抚顺113006
摘    要:对于满足一定条件的Baer半单纯环讨论了其交换性,得到了两个结论:(1)设R为Baer半单纯环,C为R的中心,G(a,b)(a,b∈R)是由a,b生成的乘法子半群,若有自然数P,对任意a,b∈R,恒有小于e的自然数n=n(n,6)〉1,使对于任意x,y∈G(a,b),有(xy)″-x″y″∈C,则R为交换环。(2)设R为Baer半单纯环,C为R之中心,若有自然数e,对任意a,b∈R,恒有自然数k=n(a,b),n(a,b)+1,n(a,b)+2≤e,使得(ab)^k-a^kb^k∈C,则R为交换环。

关 键 词:交换性  Baer半单纯环  中心

Commutativity of a class of Baer semi-simple rings
CUI Dian-jun,FU Cheng-hua.Commutativity of a class of Baer semi-simple rings[J].Journal of Anshan Institute of Iron and Steel Technology,2010(3):265-267.
Authors:CUI Dian-jun  FU Cheng-hua
Affiliation:(Fushun Teacher' s College, Fushun 1130061, China)
Abstract:The following results are proved: ( 1 ) Let R be Baer semi-simple ring and C be the center of R and G (a, b ) be the multiplieative sub semi-group of R generated by a, b in R , if there exists an integer n = n (a, b) 〈 e which is a fixed integer, for any a, b in R such that (xy)″ - x″y″ ∈ C , for any x, y in G ( a, b ) , then R is commutative. (2) Let R be Baer semi-simple ring and C be the center of R , for any a, b in R , if there exists an integer k = n (a, b), n (a, b) + 1, n (a, b) + 2 ≤ e which is a fixed integer, such that (ab)k - a^kb^k ∈ C , then R is commutative.
Keywords:commutativity  Baer semi-simple ring  center
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