摘要
本文研究了正合列中的Gorenstein平坦覆盖问题,设0→A→B→C→0是左R-模短正合列.如果A,B,C中两个有Gorenstein平坦覆盖,我们将讨论什么时候第三个也有Gorenstein平坦覆盖.
In this paper, we investigate the problem of Gorenstein cover in an exact sequence, and discuss that if let 0 →A→B→ C→0 be a short exact sequence of R- modules, when the third has a Gorenstein falt covers, suppose two of them have Gorenstein falt covers.
出处
《兰州工业高等专科学校学报》
2008年第3期4-6,共3页
Journal of Lanzhou Higher Polytechnical College
