I-提升模的有限直和Finite direct sums of I-lifting modules
李婷婷;王永铎;王旭;
摘要(Abstract)：
I-提升模的直和不一定是I-提升模.本文给出了使I-提升模的直和仍是I-提升模成立的条件,即证明了当M=M1⊕M2,其中M1和M2是I-提升的.如果Mi是Mj-投射的(i,j=1,2)或M是duo模,则M是I-提升的.
关键词(KeyWords)： I-提升模;PSD子模;duo模
基金项目(Foundation):
作者(Authors): 李婷婷;王永铎;王旭;
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