[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 …

[HTML][HTML] Triangulated equivalence between a homotopy category and a triangulated quotient category

Z Di, Z Liu, X Yang, X Zhang - Journal of Algebra, 2018 - Elsevier
Given two complete hereditary cotorsion pairs (Q, R) and (Q′, R′) in a bicomplete abelian
category G such that Q′⊆ Q and Q∩ R= Q′∩ R′, Becker showed that there exists a …

Gorenstein model structures and generalized derived categories

J Gillespie, M Hovey - Proceedings of the Edinburgh Mathematical …, 2010 - cambridge.org
In a paper from 2002, Hovey introduced the Gorenstein projective and Gorenstein injective
model structures on R-Mod, the category of R-modules, where R is any Gorenstein ring …

Definable coaisles over rings of weak global dimension at most one

S Bazzoni, M Hrbek - 2021 - projecteuclid.org
In the setting of the unbounded derived category D(R) of a ring R of weak global dimension
at most one we consider t-structures with a definable coaisle. The t-structures among these …

Gorenstein cohomology in abelian categories

S Sather-Wagstaff, T Sharif, D White - Journal of Mathematics of …, 2008 - projecteuclid.org
We investigate relative cohomology functors on subcategories of abelian categories via
Auslander-Buchweitz approximations and the resulting strict resolutions. We verify that …

Gorenstein homological dimensions for extriangulated categories

J Hu, D Zhang, P Zhou - Bulletin of the Malaysian Mathematical Sciences …, 2021 - Springer
Abstract Let (C, E, s)(C, E, s) be an extriangulated category with a proper class ξ ξ of E E-
triangles. In a previous work, we introduced and studied the ξ ξ-GG projective and the ξ ξ-GG …

On purity and applications to coderived and singularity categories

J Stovicek - arXiv preprint arXiv:1412.1615, 2014 - arxiv.org
Given a locally coherent Grothendieck category G, we prove that the homotopy category of
complexes of injective objects (also known as the coderived category of G) is compactly …

The homological theory of contravariantly finite subcategories: Auslander-Buchweitz contexts, Gorenstein categories and (co-) stabilization

A Beligiannis - Communications in Algebra, 2000 - Taylor & Francis
Let C be an abelian or exact category with enough projectives and let P be the full
subcategory of projective objects of C. We consider the stable category C/P modulo …

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 …

Models for homotopy categories of injectives and Gorenstein injectives

J Gillespie - Communications in Algebra, 2017 - Taylor & Francis
ABSTRACT A natural generalization of locally noetherian and locally coherent categories
leads us to define locally type FP∞ categories. They include not just all categories of …