Rings without a Gorenstein analogue of the Govorov–Lazard theorem
H Holm, P Jørgensen - Quarterly journal of mathematics, 2011 - ieeexplore.ieee.org
It was proved by Beligiannis and Krause that over certain Artin algebras, there are
Gorenstein flat modules which are not direct limits of finitely generated Gorenstein projective …
Gorenstein flat modules which are not direct limits of finitely generated Gorenstein projective …
Nonvanishing cohomology and classes of Gorenstein rings
DA Jorgensen, LM Şega - Advances in Mathematics, 2004 - Elsevier
We give counterexamples to the following conjecture of Auslander: given a finitely
generated module M over an Artin algebra Λ, there exists a positive integer nM such that for …
generated module M over an Artin algebra Λ, there exists a positive integer nM such that for …
Gorenstein injective envelopes of Artinian modules
MN Babaei, K Divaani-Aazar - Communications in Algebra, 2014 - Taylor & Francis
Let R be a commutative Noetherian ring and A an Artinian R-module. We prove that if A has
finite Gorenstein injective dimension, then A possesses a Gorenstein injective envelope …
finite Gorenstein injective dimension, then A possesses a Gorenstein injective envelope …
On Modules M such that both M and M∗ are Semi-Gorenstein-Projective
CM Ringel, P Zhang - Algebras and Representation Theory, 2021 - Springer
Let A be an artin algebra. An A-module M is semi-Gorenstein-projective provided that Ext i
(M, A)= 0 for all i≥ 1. If M is Gorenstein-projective, then both M and its A-dual M∗ are semi …
(M, A)= 0 for all i≥ 1. If M is Gorenstein-projective, then both M and its A-dual M∗ are semi …
Gorenstein-projective and semi-Gorenstein-projective modules
CM Ringel, P Zhang - Algebra & Number Theory, 2020 - msp.org
Let A be an artin algebra. An A-module M will be said to be semi-Gorenstein-projective
provided that Ext i (M, A)= 0 for all i≥ 1. All Gorenstein-projective modules are semi …
provided that Ext i (M, A)= 0 for all i≥ 1. All Gorenstein-projective modules are semi …
Gorenstein injective and projective complexes
EE Enochs, JR Garcí Rozas - Communications in Algebra, 1998 - Taylor & Francis
In this article we extend the notion of Gorenstein injective and projective modules to that of
complexes and characterize such complexes. We prove that over an n-Gorenstein ring every …
complexes and characterize such complexes. We prove that over an n-Gorenstein ring every …
On algebras of finite Cohen–Macaulay type
A Beligiannis - Advances in Mathematics, 2011 - Elsevier
We study Artin algebras Λ and commutative Noetherian complete local rings R in connection
with the following decomposition property of Gorenstein-projective modules: We show that …
with the following decomposition property of Gorenstein-projective modules: We show that …
Gorenstein flat covers of modules over Gorenstein rings
E Enochs, J Xu - Journal of Algebra, 1996 - Elsevier
A left and right Noetherian ringRis called Gorenstein if bothRRandRRhave finite injective
dimensions. These rings were studied by Bass for the commutative case and Iwanaga for …
dimensions. These rings were studied by Bass for the commutative case and Iwanaga for …
Characterizing when the category of Gorenstein projective modules is an abelian category
F Kong - Algebras and Representation Theory, 2014 - Springer
We find sufficient and necessary conditions for the category of Gorenstein projective
modules of an artin algebra being an abelian category, and give another proof for the …
modules of an artin algebra being an abelian category, and give another proof for the …
A characterization of Gorenstein projective modules
J Wang, L Liang - Communications in Algebra, 2016 - Taylor & Francis
In this article, we give a new characterization of Gorenstein projective modules. As
applications of our result, we prove that a strongly Gorenstein projective module of …
applications of our result, we prove that a strongly Gorenstein projective module of …