Covers and Envelopes by V-Gorenstein Modules

Covers and Envelopes by V-Gorenstein Modules
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DOI:
10.1080/00927870500328766
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发表时间:
2005-11
影响因子:
0.7
通讯作者:
E. Enochs;Overtoun M. G. Jenda;J. A. López-Ramos
E. Enochs;Overtoun M. G. Jenda;J. A. López-Ramos
中科院分区:
数学3区
文献类型:
--
作者:
E. Enochs;Overtoun M. G. Jenda;J. A. López-Ramos

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摘要在这篇文章中,我们研究了与对偶模相关的V-Gorenstein模(Enochs et al.,印刷中)。这些模构成了著名的Gorenstein模的推广,同时也是Ω-Gorenstein模的非交换情形的推广(参见:Enochs and Jenda,2000 a,in press).我们表明,在有限的假设下,平面模的投影维数(一个属性,许多环),覆盖和信封,这些类的模块存在。
ABSTRACT In this article, we study V-Gorenstein modules relatives to a dualizing module (Enochs et al., in press). These modules constitute a generalization of the well-known Gorenstein modules and at the same time an extension to the noncommutative case of Ω-Gorenstein modules (cf. Enochs and Jenda, 2000a, in press). We show that, under hypothesis of finiteness of projective dimension for flat modules (a property that holds for many rings), covers and envelopes for these classes of modules exist.