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Related papers: $n$-term silting complexes in $K^b(proj(\Lambda))$

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Support $\tau$-tilting pairs, functorially finite torsion classes and $2$-term silting complexes are three much studied concepts in the representation theory of finite-dimensional algebras, which moreover turn out to be connected via work…

Representation Theory · Mathematics 2025-02-11 Endre S. Rundsveen , Laertis Vaso

Inspired by tau-tilting theory [AIR], we introduce the notion of nu-stable support tau-tilting modules. For any finite dimensional selfinjective algebra {\Lambda}, we give bijections between two-term tilting complexes in Kb(proj {\Lambda}),…

Representation Theory · Mathematics 2013-12-04 Yuya Mizuno

We give a generalization of the classical tilting theorem. We show that for a 2-term silting complex $\mathbf{P}$ in the bounded homotopy category $K^b(\mathop{\rm proj}\nolimits A)$ of finitely generated projective modules of a finite…

Representation Theory · Mathematics 2015-12-15 Aslak Bakke Buan , Yu Zhou

The aim of this paper is to introduce tau-tilting theory, which completes (classical) tilting theory from the viewpoint of mutation. It is well-known in tilting theory that an almost complete tilting module for any finite dimensional…

Representation Theory · Mathematics 2013-06-11 Takahide Adachi , Osamu Iyama , Idun Reiten

In extended hearts of bounded $t$-structures on a triangulated category, we provide a Happel-Reiten-Smalo tilting theorem and a characterization for $s$-torsion pairs. Applying these to $m$-extended module categories, we characterize…

Representation Theory · Mathematics 2025-01-09 Yu Zhou

Let $\Lambda$ be a finite dimensional algebra with an action by a finite group $G$ and $A:= \Lambda *G$ the skew group algebra. One of our main results asserts that the canonical restriction-induction adjoint pair of the skew group algebra…

Representation Theory · Mathematics 2024-07-23 Yuta Kimura , Ryotaro Koshio , Yuta Kozakai , Hiroyuki Minamoto , Yuya Mizuno

We consider a finite dimensional strongly $G$-graded algebra $A$ with { self-injective} $1$-component $B$, and in our main result we prove that the induction from $B$ to $A$ of a basic support $\tau$-tilting pair of $B$-modules is a support…

Representation Theory · Mathematics 2022-11-17 Simion Breaz , Andrei Marcus , George Ciprian Modoi

Motivated by $\tau$-tilting theory developed by Adachi, Iyama and Reiten, for a finite-dimensional algebra $\Lambda$ with action by a finite group $G$, we introduce the notion of $G$-stable support $\tau$-tilting modules. Then we establish…

Representation Theory · Mathematics 2016-07-26 Yingying Zhang , Zhaoyong Huang

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

We give a characterization of $\tau$-rigid modules over Auslander algebras in terms of projective dimension of modules. Moreover, we show that for an Auslander algebra $\Lambda$ admitting finite number of non-isomorphic basic tilting…

Rings and Algebras · Mathematics 2017-02-28 Xiaojin Zhang

This paper endeavors to explore certain distinguished modules and subcategories within mod$\Lambda$. Let $\mathrm{proj}\mbox{-}\Lambda$ denote the category of all finitely generated projective $\Lambda$-modules and define…

Representation Theory · Mathematics 2024-10-24 Rasool Hafezi , Alireza Nasr-Isfahani , Jiaqun Wei

We introduce the notion of (strongly) $n$-AIR-tilting modules, which is a high dimension version of support $\tau$-tilting modules. The relations between them and $n$-silting modules and $n$-quasi-tilting modules, as well as generalized…

Representation Theory · Mathematics 2024-02-28 Weiqing Cao , Jiaqun Wei

We develop silting theory of a noetherian algebra $\Lambda$ over a commutative noetherian ring $R$. We study mutation theory of $2$-term silting complexes of $\Lambda$, and as a consequence, we see that mutation exists. As in the case of…

Representation Theory · Mathematics 2022-02-17 Yuta Kimura

Let $B$ be a finite dimensional algebra and $A=B[P_0]$ be the one-point extension algebra of $B$ with respect to the finitely generated projective $B$-module $P_0$. The categories of $B$-modules and $A$-modules are related by two adjoint…

Representation Theory · Mathematics 2022-08-29 J. Asadollahi , F. Padashnik , S. Sadeghi , H. Treffinger

$\tau$-tilting theory can be thought of as a generalization of the classical tilting theory which allows mutations at any indecomposable summand of a support $\tau$-tilting pair. Indeed, for any algebra $\Lambda$ its tilting modules…

Representation Theory · Mathematics 2025-12-17 Jonah Berggren , Khrystyna Serhiyenko

Let $(\mbox{mod} \Lambda',\mbox{mod} \Lambda,\mbox{mod} \Lambda'')$ be a recollement of abelian categories for artin algebras $\Lambda'$, $\Lambda$ and $\Lambda''$. Under certain conditions, we present an explicit construction of gluing of…

Category Theory · Mathematics 2020-11-26 Xin Ma , Zongzhen Xie , Tiwei Zhao

Let $\Lambda$ be an Artin algebra. In 2014, T. Adachi, O. Iyama and I. Reiten proved that the torsion funtorially finite classes in $\mathrm{mod}\,(\Lambda)$ can be described by the $\tau$-tilting theory. The aim of this paper is to…

Representation Theory · Mathematics 2021-03-17 Luis Martínez , Octavio Mendoza

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

Let $B$ be an one-point extension of a finite dimensional $k$-algebra $A$ by a simple $A$-module at a source point $i$. In this paper, we classify the $\tau$-tilting modules over $B$. Moreover, it is shown that there are equations $$|\tilt…

Representation Theory · Mathematics 2021-02-03 Hanpeng Gao

Initiated in work by Adachi, Iyama and Reiten, the area known as $\tau$-tilting theory plays a fundamental role in contemporary representation theory. In this paper we explore a higher-dimensional analogue of this theory, formulated with…

Representation Theory · Mathematics 2026-02-17 Jenny August , Johanne Haugland , Karin M. Jacobsen , Sondre Kvamme , Yann Palu , Hipolito Treffinger
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