G--Gorenstein modules
Commutative Algebra
2011-06-27 v1
Abstract
Let be a commutative Noetherian ring. In this paper, we study those finitely generated -modules whose Cousin complexes provide Gorenstein injective resolutions. We call such a module a G-Gorenstein module. Characterizations of G-Gorenstein modules are given and a class of such modules is determined. It is shown that the class of G-Gorenstein modules strictly contains the class of Gorenstein modules. Also, we provide a Gorenstein injective resolution for a balanced big Cohen-Macaulay -module. Finally, using the notion of a G-Gorenstein module, we obtain characterizations of Gorenstein and regular local rings.
Cite
@article{arxiv.1106.4972,
title = {G--Gorenstein modules},
author = {Mohsen Aghajani and Hossein Zakeri},
journal= {arXiv preprint arXiv:1106.4972},
year = {2011}
}
Comments
12 pages, to appear in Algebra Colloquium