摘要
This paper gives some results on Strong-Armendariz rings and the Ore-extensions R[x,x^-1;α] of Bare, PP and PS rings. And the main two results are: (1) R is a Bear (PP) ring if and only if R[[x]] is a Baer (PP) ring; (2) If R is an α-rigid ring, then R is a Baer (PP, PS) ring if and only if R[x, x^-1; α] is a Baer (PP, PS) ring.
在此文中,我们对Strong-Armendariz环和Baer PP及PS环Ore-扩张R[x,x^(-1);α]的一些性质进行了讨论研究,并得到了一些结果.主要证明了R是Baer(PP)环当且仅当R[[x]]是Baer(PP)环及R是α-rigid环时,R是Baer(PP,PS)环当且仅当R[[x]]是Baer(PP,PS)环.
基金
the Program for New Century Excellent Talents in University(04-0522),and the National Natural Science Foundation of China(10571153)