摘要
提出了强2-好环的概念。一个环R称为强2-好环,如果对于任意a∈R,都有R中可逆元u_1,u_2使得a=u_1+u_2,且u_1u_2=u_2u_1。给出一些强2-好环的例子,讨论它们的环扩张性质。
The concept of 2-good rings is proposed. A ring R is called strongly 2-good if for any a∈R,there exist units u_1,u_2∈R such that a = u_1+ u_2 and u_1u_2= u_2u_1. Some examples of strongly 2-good rings are presented and their ring extensions are investigated.
出处
《山东大学学报(理学版)》
CAS
CSCD
北大核心
2017年第2期14-18,共5页
Journal of Shandong University(Natural Science)
基金
国家自然科学基金资助项目(11101217)
江苏省自然科学基金资助项目(BK20141476)
关键词
可逆元
2-好环
强2-好环
环扩张
unit
2-good ring
strongly 2-good ring
ring extension