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In this paper, we prove that the global Gorenstein projective dimension of a ring $R$ is equal to the global Gorenstein injective dimension of $R$, and that the global Gorenstein flat dimension of $R$ is smaller than the common value of the…

Commutative Algebra · Mathematics 2009-07-01 Driss Bennis , Najib Mahdou

In this paper, we show that the Gorenstein global dimension of trivial ring extensions is often infinite. Also we study the transfer of Gorenstein properties between a ring and its trivial ring extensions. We conclude with an example…

Commutative Algebra · Mathematics 2008-12-24 Najib Mahdou , Khalid Ouarghi

In \cite{Ouarghi}, the authors discuss the rings over which all modules are strongly Gorenstein projective. In this paper, we are interesting to an extension of this idea. Thus, we discuss the rings over which every Gorenstein projective…

Commutative Algebra · Mathematics 2009-09-15 Najib Mahdou , Mohamed Tamekkante

In this paper, we introduce and study the projectively coresolved Gorenstein flat dimension of a group $G$ over a commutative ring $R$ and we prove that this dimension enjoys all the properties of the cohomological and the Gorenstein…

Commutative Algebra · Mathematics 2023-11-28 Dimitra-Dionysia Stergiopoulou

In this paper, we compare the Gorenstein homological dimension of a ring $R$ and of its trivial ring extension by an module $E$.

Commutative Algebra · Mathematics 2009-09-29 Najib Mahdou , Mohammed Tamekkante

In this paper, we establish, as a generalization of a result on the classical homological dimensions of commutative rings, an upper bound on the Gorenstein global dimension of commutative rings using the global cotorsion dimension of rings.…

Commutative Algebra · Mathematics 2008-04-13 D. Bennis , N. Mahdou

The existence of the Gorenstein projective precovers over arbitrary rings is an open question. It is known that if the ring has finite Gorenstein global dimension, then every module has a Gorenstein projective precover. We prove here a…

Commutative Algebra · Mathematics 2023-04-25 Sergio Estrada , Alina Iacob

Let $R$ be any ring. We prove that all direct products of flat right $R$-modules have finite flat dimension if and only if each finitely generated left ideal of $R$ has finite projective dimension relative to the class of all $\mathcal…

Rings and Algebras · Mathematics 2015-12-10 Manuel Cortés-Izurdiaga

In this paper we characterize the relative Gorenstein weak global dimension of the generalized Gorenstein $\mathrm{FP}_n$-flat $R$-modules and Projective Coresolved $\mathrm{FP}_n$-flat $R$-modules recently studied by S. Estrada, A. Iacob,…

Rings and Algebras · Mathematics 2024-12-06 Víctor Becerril

Let $R\subset A$ be a Frobenius extension of rings. We prove that: (1) for any left $A$-module $M$, $_{A}M$ is Gorenstein projective (injective) if and only if the underlying left $R$-module $_{R}M$ is Gorenstein projective (injective). (2)…

K-Theory and Homology · Mathematics 2019-07-15 Wei Ren

Let $A$ and $B$ be rings, $U$ a $(B, A)$-bimodule and $T=\left(\begin{smallmatrix} A & 0 \\ U & B \\\end{smallmatrix}\right)$ be the triangular matrix ring. In this paper, we characterize the Gorenstein homological dimensions of modules…

Rings and Algebras · Mathematics 2014-12-31 Rongmin Zhu , Zhongkui Liu , Zhanping Wang

We prove that the class of Gorenstein projective modules is special precovering over any left GF-closed ring such that every Gorenstein projective module is Gorenstein flat and every Gorenstein flat module has finite Gorenstein projective…

Commutative Algebra · Mathematics 2016-01-12 Sergio Estrada , Alina Iacob , Katelyn Yeomans

Given a two-sided noetherian ring $A$ with a dualizing complex, we show that the big finitistic dimension of $A$ is finite if and only if every bounded below Gorenstein-projective-acyclic cochain complex of Gorenstein-projective $A$-modules…

Rings and Algebras · Mathematics 2023-10-10 Liran Shaul

Let $A$ and $B$ be rings, $U$ a $(B,A)$-bimodule and $T=\begin{pmatrix} A&0\\U&B \end{pmatrix}$ the triangular matrix ring. In this paper, several notions in relative Gorenstein algebra over a triangular matrix ring are investigated. We…

Rings and Algebras · Mathematics 2021-06-22 Driss Bennis , Rachid El Maaouy , Juan Ramón García Rozas , Luis Oyonarte

For any group $G$, the Gorenstein homological dimension ${\rm Ghd}_RG$ is defined to be the Gorenstein flat dimension of the coefficient ring $R$, which is considered as an $RG$-module with trivial group action. We prove that ${\rm Ghd}_RG…

Commutative Algebra · Mathematics 2023-04-20 Wei Ren , Gang Yang

Let $\mathcal{A}$ be an abelian category. In this paper, we investigate the global $(\mathcal{X} , \mathcal{Y})$-Gorenstein projective dimension $\mathrm{gl.GPD}(\mathcal{X} ,\mathcal{Y})(\mathcal{A})$, associated to a GP-admissible pair…

Category Theory · Mathematics 2020-12-22 Víctor Becerril

Let $R$ be a commutative ring with identity and $S$ a multiplicative subset of $R$. First, we introduce and study the $S$-projective dimensions and $S$-injective dimensions of $R$-modules, and then explore the $S$-global dimension…

Commutative Algebra · Mathematics 2021-07-05 Xiaolei Zhang , Wei Qi

Gorenstein homological dimensions are refinements of the classical homological dimensions, and finiteness singles out modules with amenable properties reflecting those of modules over Gorenstein rings. As opposed to their classical…

Commutative Algebra · Mathematics 2007-05-23 L. Winther Christensen , A. Frankild , H. Holm

Distinctive characteristics of Iwanaga--Gorenstein rings are typically understood through their intrinsic symmetry. We show that several of those that pertain to the Gorenstein global dimensions carry over to the one-sided situation, even…

Rings and Algebras · Mathematics 2023-11-14 Lars Winther Christensen , Sergio Estrada , Li Liang , Peder Thompson , Junpeng Wang

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
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