[HTML][HTML] Precovers and orthogonality in the stable module category

I Emmanouil - Journal of Algebra, 2017 - Elsevier
We show that any module admits a presentation as the quotient of a Gorenstein projective
module by a submodule which is itself right orthogonal, with respect to the standard Ext 1 …

On stability of Gorenstein categories

A Xu, N Ding - Communications in Algebra, 2013 - Taylor & Francis
We show that an iteration of the procedure used to define the Gorenstein projective modules
over a ring R yields exactly the Gorenstein projective modules. Specifically, given an exact …

The stable category of Gorenstein-projective modules over a monomial algebra

T Honma, S Usui - arXiv preprint arXiv:2407.04912, 2024 - arxiv.org
Let $\Lambda $ be an arbitrary monomial algebra. We investigate the stable category
$\underline {\operatorname {Gproj}}^{\mathbb {Z}}\Lambda $ of graded Gorenstein …

[HTML][HTML] Gorenstein-projective modules and symmetric recollements

P Zhang - Journal of Algebra, 2013 - Elsevier
We introduce compatible bimodules. If M is a compatible A–B-bimodule, then the Gorenstein-
projective modules over algebra Λ=(AM0B) are explicitly described; and if Λ is Gorenstein …

Stability of Gorenstein flat categories

G Yang, Z Liu - Glasgow Mathematical Journal, 2012 - cambridge.org
A left R-module M is called two-degree Gorenstein flat if there exists an exact sequence of
Gorenstein flat left R-modules⋅⋅⋅→ G2→ G1→ G0→ G− 1→ G− 2→⋅⋅⋅ such that M≅ Ker …

Stability of Gorenstein classes of modules

S Bouchiba - Algebra Colloquium, 2013 - World Scientific
The purpose of this paper is to give, via totally different techniques, an alternate proof to the
main theorem of [18] in the category of modules over an arbitrary ring R. In effect, we prove …

Stability of Gorenstein categories

KA Sather-Wagstaff, T Sharif… - Journal of the London …, 2008 - Wiley Online Library
We show that an iteration of the procedure used to define the Gorenstein projective modules
over a commutative ring R yields exactly the Gorenstein projective modules. Specifically …

Homotopy categories of unbounded complexes of projective modules

Y Yoshino - Journal of the London Mathematical Society, 2022 - Wiley Online Library
We develop in this paper the stable theory for projective complexes, by which we mean to
consider a chain complex of finitely generated projective modules as an object of the factor …

Indecomposable pure-injective objects in stable categories of Gorenstein-projective modules over Gorenstein orders

T Nakamura - arXiv preprint arXiv:2209.15630, 2022 - arxiv.org
We give a result of Auslander-Ringel-Tachikawa type for Gorenstein-projective modules
over a complete Gorenstein order. In particular, we prove that a complete Gorenstein order …

Symmetric Auslander and bass categories

P Jørgensen, K Kato - Mathematical Proceedings of the Cambridge …, 2011 - cambridge.org
We define the symmetric Auslander category As (R) to consist of complexes of projective
modules whose left-and right-tails are equal to the left-and right-tails of totally acyclic …