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RELATIVE INJECTIVITY OF MODULES AND EXCELLENT EXTENSIONS

 

作者: M.M. Parmenter,   Yiqiang Zhou,  

 

期刊: Quaestiones Mathematicae  （Taylor Available online 1999）
卷期: Volume 22, issue 1  

页码: 101-107

 

ISSN:1607-3606

 

年代: 1999

 

DOI:10.1080/16073606.1999.9632062

 

出版商: Taylor & Francis Group

 

关键词: 16S20;16D50

 

数据来源: Taylor

 

摘要:

LetSbe an excellent extension of a ringR1,ManS-module andNanR-module. It is proved thatMsis anSI-module iffMRis anSI-module and thatNRis anSI-module iff (N⊗RS) is anSI-module. The notions ofGV-modules (V-modules, orS3I-modules), hereditary modules and cohereditary modules are also discussed.

 

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