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Related papers: On mutation of {\tau}-tilting modules

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From the viewpoint of mutation, we will give a brief survey of tilting theory and cluster-tilting theory together with a motivation from cluster algebras. Then we will give an introdution to \tau-tilting theory which was recently developed…

Representation Theory · Mathematics 2015-06-18 Osamu Iyama , Idun Reiten

Mutation of compact silting objects is a fundamental operation in the representation theory of finite-dimensional algebras due to its connections to cluster theory and to the lattice of torsion pairs in module or derived categories. In this…

Representation Theory · Mathematics 2025-06-18 Lidia Angeleri Hügel , Rosanna Laking , Jan Šťovíček , Jorge Vitória

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

Let $A$ be the one point extension of an algebra $B$ by a projective $B$-module. We prove that the extension of a given support $\tau$-tilting $B$-module is a support $\tau$-tilting $A$-module; and, conversely, the restriction of a given…

Representation Theory · Mathematics 2017-05-23 Pamela Suarez

Tilting mutation is a way of producing new tilting complexes from old ones replacing only one indecomposable summand. In this paper, we give a purely combinatorial procedure for performing tilting mutation of suitable algebras. As an…

Representation Theory · Mathematics 2021-12-22 Didrik Fosse

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

We establish some properties of $\tau$-exceptional sequences for finite-dimensional algebras. In an earlier paper we established a bijection between the set of ordered support $\tau$-tilting modules and the set of complete signed…

Representation Theory · Mathematics 2022-12-02 Aslak Bakke Buan , Bethany Rose Marsh

The class of support $\tau$-tilting modules was introduced recently by Adachi, Iyama and Reiten. These modules complete the class of tilting modules from the point of view of mutations. Given a finite dimensional algebra $A$, we study all…

Representation Theory · Mathematics 2017-06-15 Gustavo Jasso

A mutation operation for $\tau$-exceptional sequences of modules over any finite-dimensional algebra was recently introduced, generalising the mutation for exceptional sequences of modules over hereditary algebras. We interpret this…

Representation Theory · Mathematics 2025-01-24 Aslak B. Buan , Maximilian Kaipel , Håvard U. Terland

In this article, we prove that induced modules of support $\tau$-tilting modules over blocks of finite groups satisfying inertial-invariant condition are also support $\tau$-tilting modules.

Representation Theory · Mathematics 2022-12-06 Ryotaro Koshio

We study (support) $\tau$-tilting modules over the trivial extensions of finite dimensional algebras. More precisely, we construct two classes of (support)$\tau$-tilting modules in terms of the adjoint functors which extend and generalize…

Representation Theory · Mathematics 2022-02-21 Zhi-Wei Li , Xiaojin Zhang

Tilting modules, generalising the notion of progenerator, furnish equivalences between pieces of module categories. This paper is dedicated to study how much these pieces say about the whole category. We will survey the existing results in…

Rings and Algebras · Mathematics 2019-01-11 Francesco Mattiello , Sergio Pavon , Alberto Tonolo

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

We show that there is a special bijection between the indecomposable summands of the two modules which form a basic support $\tau$--tilting pair and the indecomposable summands of the two modules which form another basic support…

Representation Theory · Mathematics 2025-04-08 Gabriella D'Este

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

In representation theory of algebras the notion of `mutation' often plays important roles, and two cases are well known, i.e. `cluster tilting mutation' and `exceptional mutation'. In this paper we focus on `tilting mutation', which has a…

Representation Theory · Mathematics 2014-02-26 Takuma Aihara , Osamu Iyama

We introduce a notion of mutation for $\tau$-exceptional sequences of modules over arbitrary finite dimensional algebras. For hereditary algebras, we show that this coincides with the classical mutation of exceptional sequences. For rank…

Representation Theory · Mathematics 2024-02-19 Aslak B. Buan , Eric J. Hanson , Bethany R. Marsh

$\tau$-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

We describe a special bijection between the indecomposable summands of two basic $\tau$-tilting modules.

Representation Theory · Mathematics 2025-04-10 Gabriella D'Este , H. Melis Tekin Akcin

Important objects of study in $\tau$-tilting theory include the $\tau$-tilting pairs over an algebra on the form $kQ/I$, with $kQ$ being a path algebra and $I$ an admissible ideal. In this paper, we study aspects of the combinatorics of…

Representation Theory · Mathematics 2021-09-27 Håvard Utne Terland
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