期刊名称:International Journal of Mathematics and Mathematical Sciences
印刷版ISSN:0161-1712
电子版ISSN:1687-0425
出版年度:2004
卷号:2004
期号:30
页码:1581-1588
DOI:10.1155/S0161171204310082
出版社:Hindawi Publishing Corporation
摘要:
Let A be a ring and Λ a finitely generated A -module. We give necessary and sufficient conditions for projectivity and flatness of a module over the endomorphism ring of Λ .