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Envelopes and Covers by Modules of Finite FP -Injective and Flat Dimensions

โœ Scribed by Mao, Lixin; Ding, Nanqing


Book ID
126757074
Publisher
Taylor and Francis Group
Year
2007
Tongue
English
Weight
300 KB
Volume
35
Category
Article
ISSN
0092-7872

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Envelopes and Covers by Modules of Finit
โœ S.Tempest Aldrich; Edgar E. Enochs; Overtoun M.G. Jenda; Luis Oyonarte ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 115 KB

In this paper, we study the existence of โŠฅ -envelopes, -envelopes, โŠฅ -envelopes, -covers, and -covers where and denote the classes of modules of injective and projective dimension less than or equal to a natural number n, respectively. We prove that over any ring R, special โŠฅ -preenvelopes and speci