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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

(Partial) Gorenstein silting modules are introduced and investigated. It is shown that for finite dimensional algebras of finite CM-type, partial Gorenstein silting modules are in bijection with {\tau}_G-rigid modules; Gorenstein silting…

Representation Theory · Mathematics 2022-09-02 Nan Gao , Jing Ma , Chi-Heng Zhang

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

We introduce a generalization of tilting modules of finite projective dimension, projectively Wakamatsu tilting modules, which are self-orthogonal and Ext-progenerators in their Ext-perpendicular categories. Under a certain finiteness…

Representation Theory · Mathematics 2023-04-10 Haruhisa Enomoto

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

In this paper, we investigate the relative dominant dimension with respect to an injective module and characterize the algebras with finite relative dominant dimension. As an application, we introduce the almost n-precluster tilting module…

Representation Theory · Mathematics 2019-07-16 Shen Li , Shunhua Zhang

It is a well-known result of Auslander and Reiten that contravariant finiteness of the class $\mathcal{P}^{\mathrm{fin}}_\infty$ (of finitely generated modules of finite projective dimension) over an Artin algebra is a sufficient condition…

Representation Theory · Mathematics 2020-06-04 Pooyan Moradifar , Jan Šaroch

For any ring $R$, we investigate balanced pairs of classes of modules and their relations to cotorsion triples. We characterize the case when a balanced pair generates a tilting cotorsion pair, and dually, when it cogenerates a cotilting…

Representation Theory · Mathematics 2026-02-24 Sergio Estrada , Jiangsheng Hu , Jan Trlifaj

We introduce the new concept of silting modules. These modules generalise tilting modules over an arbitrary ring, as well as support $\tau$-tilting modules over a finite dimensional algebra recently introduced by Adachi, Iyama and Reiten.…

Representation Theory · Mathematics 2014-05-13 Lidia Angeleri Hügel , Frederik Marks , Jorge Vitória

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

We give a construction of Gorenstein projective $\tau$-tilting modules in terms of tensor products of modules. As a consequence, we give a class of non-self-injective algebras admitting non-trivial Gorenstein projective $\tau$-tilting…

Representation Theory · Mathematics 2022-01-13 Zhi-Wei Li , Xiaojin Zhang

Relative Auslander algebras were introduced and studied by Beligiannis. In this paper, we apply intermediate extension functors associated to certain recollements of functor categories to study them. In particular, we study the existence of…

Representation Theory · Mathematics 2017-11-21 Javad Asadollahi , Rasool Hafezi

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 a finite dimensional algebra $\Lambda$ and a non-negative integer $n$, we characterize when the set $\tilt_n\Lambda$ of additive equivalence classes of tilting modules with projective dimension at most $n$ has a minimal (or…

Representation Theory · Mathematics 2020-08-05 Osamu Iyama , Xiaojin Zhang

We generalize Brenner and Butler's Theorem as well as Happel's Theorem on the equivalences induced by a finitely generated tilting module over artin algebras, to the case of an infinitely generated tilting module over an arbitrary…

Rings and Algebras · Mathematics 2019-12-16 Silvana Bazzoni

Over a commutative Noetherian ring, we show that the Auslander-Reiten conjecture holds true for the class of (finitely generated) modules whose dual has finite complete intersection dimension. We provide another result that validates the…

Commutative Algebra · Mathematics 2026-03-16 Dipankar Ghosh , Mouma Samanta

In this paper we introduce a special kind of relative (co)resolutions associated to a pair of classes of objects in an abelian category $\mathcal{C}.$ We will see that, by studying these relative (co)resolutions, we get a possible…

Representation Theory · Mathematics 2024-06-11 Alejandro Argudín Monroy , Octavio Mendoza Hernández

We introduce a relative tilting theory in abelian categories and show that this work offers a unified framework of different previous notions of tilting, ranging from Auslander-Solberg relative tilting modules on Artin algebras to…

Representation Theory · Mathematics 2023-11-27 Alejandro Argudin Monroy , Octavio Mendoza Hernandez

Gorenstein homological algebra is a kind of relative homological algebra which has been developed to a high level since more than four decades. In this report we review the basic theory of Gorenstein homological algebra of artin algebras.…

Representation Theory · Mathematics 2017-12-14 Xiao-Wu Chen

We study Tate-Vogel and relative cohomologies of complexes by applying the model structure induced by a complete hereditary cotorsion pair ($\A$, $\B$) of modules. We show first that the class of complexes admitting a complete $\A$…

Rings and Algebras · Mathematics 2020-08-25 Jiangsheng Hu , Huanhuan Li , Jiaqun Wei , Xiaoyan Yang , Nanqing Ding
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