AB-Contexts and Stability for Gorenstein Flat Modules with Respect to Semidualizing Modules

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We investigate the properties of categories of G_C-flat R-modules where C is a semidualizing module over a commutative noetherian ring R. We prove that the category of all G_C-flat R-modules is part of a weak AB-context, in the terminology of Hashimoto. In particular, this allows us to deduce the existence of certain Auslander-Buchweitz approximations for R-modules of finite G_C-flat dimension. We also prove that two procedures for building R-modules from complete resolutions by certain subcategories of G_C-flat R-modules yield only the modules in the original subcategories.
22 pages, uses xypic

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Commutative Algebra, 13C05, 13C11, 13D02, 13D05

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http://salesiana.dossiersoluciones.com/handle/123456789/156457

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0803.0998
 http://arxiv.org/abs/0803.0998

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arXiv