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Let $\mathcal{X}$ be a class of left $R$-modules, $\mathcal{Y}$ be a class of right $R$-modules. In this paper, we introduce and study Gorenstein $(\mathcal{X}, \mathcal{Y})$-flat modules as a common generalization of some known modules…

Representation Theory · Mathematics 2018-02-15 Zhanping Wang , Gang Yang

Let R be a ring and n,k be two non-negative integers. As an extension of several known notions, we introduce and study (n,k)-weak cotorsion modules using the class of right R-modules with n-weak flat dimensions at most k. Various examples…

Commutative Algebra · Mathematics 2021-06-15 Mostafa Amini , Houda Amzil , Driss Bennis

Recently, many authors have embraced the study of certain properties of modules such as projectivity, injectivity and flatness from an alternative point of view. This way, Durgun has introduced absolutely pure domains of modules as a mean…

Algebraic Geometry · Mathematics 2024-11-15 Soumia Mamdouhi

Let $\mathcal{A}$ be an abelian category. For a pair $(\mathcal{X},\mathcal{Y}$ of classes of objects in $\mathcal{A},$ we define the weak and the $(\mathcal{X},\mathcal{Y})$-Gorenstein relative projective objects in $\mathcal{A}$. We point…

Rings and Algebras · Mathematics 2019-11-21 Victor Becerril , Octavio Mendoza , Valente Santiago

There are nice relations between graded homological dimensions and ordinary homological dimensions. We study the Gorenstein injective dimension of a complex of graded modules denoted by $^*\Gid$, and derive its properties. In particular we…

Commutative Algebra · Mathematics 2013-06-18 Afsaneh Esmaeelnezhad , Parviz Sahandi

We formulate and answer Gorenstein projective, flat, and injective analogues of a classical projectivity question for group rings under some mild additional assumptions. Although the original question, that was proposed by Jang-Hyun Jo in…

Rings and Algebras · Mathematics 2026-03-30 Rudradip Biswas , Dimitra-Dionysia Stergiopoulou

Let $C$ be a semidualizing module. We first investigate the properties of finitely generated $G_C$-projective modules. Then, relative to $C$, we introduce and study the rings of Gorenstein (weak) global dimensions at most 1, which we call…

Commutative Algebra · Mathematics 2015-01-23 Guoqiang Zhao , Juxiang Sun

We investigate the relationship between the level of a bounded complex over a commutative ring with respect to the class of Gorenstein projective modules and other invariants of the complex or ring, such as projective dimension, Gorenstein…

Commutative Algebra · Mathematics 2021-11-16 Laila Awadalla , Thomas Marley

In this paper, we define a class of relative derived functors in terms of left or right weak flat resolutions to compute the weak flat dimension of modules. Moreover, we investigate two classes of modules larger than that of weak injective…

Rings and Algebras · Mathematics 2017-04-11 Tiwei Zhao

In this paper, we study the relative homological dimension based on the class of projectively coresolved Gorenstein flat modules (PGF-modules), that were introduced by Saroch and Stovicek. The resulting PGF-dimension of modules has several…

Rings and Algebras · Mathematics 2023-02-21 Georgios Dalezios , Ioannis Emmanouil

Given a non-negative integer $n$ and a ring $R$ with identity, we construct an abelian model structure on the category of left $R$-modules where the class of cofibrant objects coincides with $\mathcal{GF}_n(R)$ the class of left $R$-modules…

Rings and Algebras · Mathematics 2024-12-20 Rachid El Maaouy

In this paper, we study the resolving of $\mathcal{SGP}(-)$ and $\mathcal{SGF}(-)$, the classes of all strongly Gorenstein projective and flat modules respectively, over a direct product of commutative rings.

Commutative Algebra · Mathematics 2009-03-19 Najib Mahdou , Mohammed Tamekkante

Given a homomorphism of commutative noetherian rings R --> S and an S-module N, it is proved that the Gorenstein flat dimension of N over R, when finite, may be computed locally over S. When, in addition, the homomorphism is local and N is…

Commutative Algebra · Mathematics 2007-05-23 Lars Winther Christensen , Srikanth Iyengar

Let k be a field and q a non-zero element of k. In Part I, we have exhibited a 6-dimensional k-algebra A = A(q) and we have shown that if q has infinite multiplicative order, then A has a 3-dimensional local module which is…

Representation Theory · Mathematics 2019-05-13 Claus Michael Ringel , Pu Zhang

Let R be a graded ring and n > 1 an integer. In this paper, We introduce the notions of Ding n-gr-injective and Ding n-gr-flat modules by using of special finitely presented graded modules . Then, some properties of Ding n-gr-injective and…

Rings and Algebras · Mathematics 2021-06-15 Mostafa Amini , Driss Bennis , Soumia Mamdouhi

We introduce Gorenstein silting modules (resp. complexes), and give the relation with the usual silting modules (resp. complexes). We show that Gorenstein silting modules are the module-theoretic counterpart of 2-term Gorenstein silting…

Commutative Algebra · Mathematics 2021-12-30 Nan Gao , Jing Ma , Chiheng Zhang

Let $R$ be a commutative noetherian ring. The $n$-semidualizing modules of $R$ are generalizations of its semidualizing modules. We will prove some basic properties of $n$-semidualizing modules. Our main result and example shows that the…

Commutative Algebra · Mathematics 2022-10-04 Tony Se

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

Let $T_R(M)$ be a tensor ring, where $R$ is a ring and $M$ is an $N$-nilpotent $R$-bimodule. Under certain conditions, we characterize projectively coresolved Gorenstein flat modules over $T_R(M)$, showing that a $T_R(M)$ module $(X,u)$ is…

Rings and Algebras · Mathematics 2025-11-19 Guoliang Tang , Jiaqun Wei

We define a notion of Gorenstein flat dimension for unbounded complexes over left GF-closed rings. Over Gorenstein rings we introduce a notion of Gorenstein cohomology for complexes; we also define a generalized Tate cohomology for…

Commutative Algebra · Mathematics 2010-02-10 Alina Iacob