摘要
几乎可裂序列是研究代数表示论的一个有力工具.本文刻划了包含投射模的几乎可裂序列,给出以投射模为首项和中间项的几乎可裂序列的特性.
The almost split sequence is an important instrument in research of the representation theory for algebra. We describe the properties of the almost split sequence containing projective module as the first term and the middle term.
出处
《北方交通大学学报》
CSCD
北大核心
2003年第3期24-26,共3页
Journal of Northern Jiaotong University
关键词
投射模
投射盖
几乎可裂序列
既约映射
projective module
projective cover
almost split sequence
irreducible morphism
