摘要
设C是交换凝聚环R上的半对偶R-模.证明了:如果S是使得C■RS-Gorenstein平坦S-模类关于扩张封闭的满忠实平坦交换R-代数,那么R-模M是C-Gorenstein平坦的当且仅当S-模S■RM是C■RS-Gorenstein平坦的.
Let C be a semidualizing R-module over a commutative coherent ring R.In this artical,we show that if S is a faithfully flat commutative R-algebra such that the class of C■R S-Gorenstein flat S-modules is closed under extensions,then an R-module M is C-Gorenstein flat if and only if the S-module S■RM is C■RS-Gorenstein flat.
作者
蔡晓东
曹苗
狄振兴
CAI Xiao-dong;CAO Miao;DI Zhen-xing(School of Mathematics and Statistics, Northwest Normal University, Lanzhou 730070, China)
出处
《西南师范大学学报(自然科学版)》
CAS
北大核心
2020年第6期16-20,共5页
Journal of Southwest China Normal University(Natural Science Edition)
基金
国家自然科学基金项目(11601433)。