摘要
给出了零化子凝聚环的概念,并讨论了该环的基本性质以及此环与凝聚环、Π-凝聚环、AF-环等的关系,以及在一定条件下零化子凝聚环上的零化子理想、有限生成理想及其商模的自反性.最后,引入了零化子平坦模的定义,利用它将Chase定理推广到了零化子凝聚环上.
In this paper,the notion of ann-coherent ring is defined,and its properties ate studied. The notion is a generalization of that of coherent rings. Then the relation of ann-coherent rings with coherent rings and AF rings is discussed. The reflexitivity of ideals and quotient modules of ann-coherent rings under some conditions is studied. Finally, the notion of ann-fiat modules is also defined, by which we extend the famous Chase's theory to ann-coherent rings.
出处
《四川师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2006年第2期161-165,共5页
Journal of Sichuan Normal University(Natural Science)
基金
四川省教育厅自然科学重点基金
四川省青年基金资助项目