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A note on Gorenstein projective modules
被引:1
|作者:
Wu, Dejun
[1
]
机构:
[1] Lanzhou Univ Technol, Dept Appl Math, Lanzhou 730050, Gansu, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Cover;
envelope;
Gorenstein projective module;
FLAT COVERS;
DIMENSIONS;
D O I:
10.1080/00927872.2017.1344687
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
In this note, it is proven that if R is a right noetherian ring with id(R)o R < infinity and ExtR(i >= 1) (M, F) = 0 for any left R-module F with finite flat dimension, then M is Gorenstein projective; if R is a left noetherian ring with id(R)R < infinity and M is a Gorenstein projective left R-module, then ExtR(i >= 1), (M, F) = 0 for any left R-module F with finite flat dimension.
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页码:1300 / 1303
页数:4
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