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We define a notion of total acyclicity for complexes of flat quasi-coherent sheaves over a semi-separated noetherian scheme, generalising complete flat resolutions over a ring. By studying these complexes as objects of the pure derived…

Algebraic Geometry · Mathematics 2009-02-19 Daniel Murfet , Shokrollah Salarian

Under semi-weak and weak compatibility of bimodules, we establish sufficient and necessary conditions of Gorenstein-projective modules over rings of Morita contexts with one bimodule homomorphism zero. This generalises and extends results…

Representation Theory · Mathematics 2022-08-24 Qianqian Guo , Changchang Xi

For a self-orthogonal module $T$, the relation between the quotient triangulated category $D^b(A)/K^b({\rm add} T)$ and the stable category of the Frobenius category of $T$-Cohen-Macaulay modules is investigated. In particular, for a…

Representation Theory · Mathematics 2008-09-19 Xiao-Wu Chen , Pu Zhang

Our purpose in this work is multifold. First, we provide general criteria for the finiteness of the projective and injective dimensions of a finite module $M$ over a (commutative) Noetherian ring $R$. Second, in the other direction, we…

Commutative Algebra · Mathematics 2024-05-02 Souvik Dey , Rafael Holanda , Cleto B. Miranda-Neto

Let $T_R(M)$ be a tensor ring and $\mathcal{X}$, $\mathcal{Y}$ be two classes of $R$-modules. Under certain conditions, we prove that a $T_R(M)$-module $(A, u)$ is $Ind(\mathcal{X})$-Gorenstein projective if and only if $u$ is monomorphic…

Rings and Algebras · Mathematics 2025-12-30 Guoqiang Zhao , Juxiang Sun

In this paper, we introduce and study relative Auslander--Gorenstein pairs. This consists of a finite-dimensional Gorenstein algebra together with a self-orthogonal module that provides a further homological feature of the algebra in terms…

Representation Theory · Mathematics 2024-04-16 Tiago Cruz , Chrysostomos Psaroudakis

Owing to the difference in $K$-theory, an example by Dugger and Shipley implies that the equivalence of stable categories of Gorenstein projective modules should not be a Quillen equivalence. We give a sufficient and necessary condition for…

K-Theory and Homology · Mathematics 2022-10-03 Wei Ren

In this paper we consider Gorenstein stable surfaces with $K^2_X=1$ and positive geometric genus. Extending classical results, we show that such surfaces admit a simple description as weighted complete intersection. We exhibit a wealth of…

Algebraic Geometry · Mathematics 2015-11-11 Marco Franciosi , Rita Pardini , Sönke Rollenske

Let $(R,\fm)$ be a Cohen-Macaulay local ring. If $R$ has a canonical module, then there are some interesting results about duality for this situation. In this paper, we show that one can indeed obtain similar these results in the case $R$…

Commutative Algebra · Mathematics 2008-09-25 Mohammad Ali Esmkhani , Massoud Tousi

Let T be a tilting module.In this paper, some relative Gorenstein projective and Gortenstein injective modules are studied.

Commutative Algebra · Mathematics 2019-06-05 M. Amini

Dualities of resolving subcategories of finitely generated modules over Artin algebras are characterized as dualities with respect to Wakamatsu tilting bimodules. By restriction of these dualities to resolving subcategories of finitely…

Rings and Algebras · Mathematics 2024-11-20 Hongxing Chen , Jiangsheng Hu

Let R be a homomorphic image of a Gorenstein local ring. Recent work has shown that there is a bridge between Auslander categories and modules of finite Gorenstein homological dimensions over R. We use Gorenstein dimensions to prove new…

Commutative Algebra · Mathematics 2007-05-23 Lars Winther Christensen , Henrik Holm

Principal affine open subsets in affine schemes are an important tool in the foundations of algebraic geometry. Given a commutative ring $R$, $\,R$-modules built from the rings of functions on principal affine open subschemes in…

Commutative Algebra · Mathematics 2020-05-27 Leonid Positselski , Alexander Slavik

In \cite{AB}, Auslander and Bridger introduced Gorenstein projective modules and only about 40 years after their introduction a finite dimensional algebra $A$ was found in \cite{JS} where the subcategory of Gorenstein projective modules did…

Representation Theory · Mathematics 2023-10-30 Rene Marczinzik

We introduce the notions of Gorenstein projective $\tau$-rigid modules, Gorenstein projective support $\tau$-tilting modules and Gorenstein torsion pairs and give a Gorenstein analog to Adachi-Iyama-Reiten's bijection theorem on support…

Representation Theory · Mathematics 2022-07-28 Zongzhen Xie , Xiaojin Zhang

Let $R$ be a commutative ring. An $R$-module $M$ is said to be super finitely presented if there is an exact sequence of $R$-modules $\cdots\rightarrow P_n\rightarrow\cdots \rightarrow P_1\rightarrow P_0\rightarrow M\rightarrow 0$ where…

Commutative Algebra · Mathematics 2017-08-10 Fanggui Wang , Lei Qiao , Hwankoo Kim

The principle "Every result in classical homological algebra should have a counterpart in Gorenstein homological algebra" is given in [3]. There is a remarkable body of evidence supporting this claim (cf. [2] and [3]). Perhaps one of the…

Rings and Algebras · Mathematics 2010-07-12 Edgar E. Enochs , Zhaoyong Huang

We construct Abelian model structures on the category of chain complexes over a ring $R$, from the notion homological dimensions of modules. Given an integer $n > 0$, we prove that the left modules over a ringoid $\mathfrak{R}$ with…

Category Theory · Mathematics 2016-10-31 Marco Pérez

We associate to a localizable module a left retraction of algebras; it is a homological ring epimorphism that preserves singularity categories. We study the behavior of left retractions with respect to Gorenstein homological properties (for…

Representation Theory · Mathematics 2012-06-22 Xiao-Wu Chen , Yu Ye

Starting from the notion of totally reflexive modules, we survey the theory of Gorenstein homological dimensions for modules over commutative rings. The account includes the theory's connections with relative homological algebra and with…

Commutative Algebra · Mathematics 2010-01-03 Lars Winther Christensen , Hans-Bjørn Foxby , Henrik Holm
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