摘要
文章首先根据文献[1]和[2]中P-平坦模和P-内射模的定义给出了它们的一些等价条件,然后利用这两种模来刻画了P.P,Von Neumann正则环.并推广了左凝聚环的概念,引入了左P-凝聚环的概念,最后也用P-平坦模和P-内射模来刻画了左P-凝聚环.
In this paper we obtain some equivalent conditions of P-injective modules and P-flat modules,and Von Neumann regular rings andP.P rings are characterized by P-injective modules and P-flat modules.Moreover,we introduce the concept of P-coherent rings.At last,P-coherent rings are also characterized by P-injective modules and P-flat modules.
出处
《西南民族大学学报(自然科学版)》
CAS
2007年第1期26-30,共5页
Journal of Southwest Minzu University(Natural Science Edition)