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Related papers: Introduction to $\tau$-tilting theory

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We put cluster tilting in ageneral framework by showing that any quotient of a triangulated category modulo a tilting subcategory (that is, a maximal one-orthogonal subcategory) carries an abelian structure. These abelian quotients turn out…

Representation Theory · Mathematics 2007-06-13 Steffen Koenig , Bin Zhu

In this paper we introduce a new approach for organizing algebras of global dimension at most 2. We introduce the notion of cluster equivalence for these algebras, based on whether their generalized cluster categories are equivalent. We are…

Representation Theory · Mathematics 2012-03-08 Claire Amiot , Steffen Oppermann

Let $A$ be a finite dimensional algebra over an algebraically closed field $k$, $\mathcal {D}^b(A)$ be the bounded derived category of $A$-mod and $A^{(m)}$ be the $m$-replicated algebra of $A$. In this paper, we investigate the structure…

Representation Theory · Mathematics 2012-12-18 Genhua Pei , Hongbo Yin , Shunhua Zhang

For a triangulated category T, if C is a cluster-tilting subcategory of T, then the quotient category T\C is an abelian category. Under certain conditions, the converse also holds. This is an very important result of cluster-tilting theory,…

Representation Theory · Mathematics 2020-03-16 Yu Liu , Panyue Zhou

We prove that mutation of complete $\tau$-exceptional sequences is transitive for $\tau$-tilting finite algebras.

Representation Theory · Mathematics 2025-06-27 Aslak B. Buan , Eric J. Hanson , Bethany R. Marsh

Let $A$ be a finite-dimensional gentle algebra over an algebraically closed field. We investigate the combinatorial properties of support $\tau$-tilting graph of $A$. In particular, it is proved that the support $\tau$-tilting graph of $A$…

Representation Theory · Mathematics 2024-02-15 Changjian Fu , Shengfei Geng , Pin Liu , Yu Zhou

In studying the structure of derived categories of module categories of group algebras or their blocks, it is fundamental to classify support $\tau$-tilting modules. Koshio and Kozakai showed that the structure of support $\tau$-tilting…

Representation Theory · Mathematics 2023-11-29 Naoya Hiramae

This paper shows a new phenomenon in higher cluster tilting theory. For each positive integer d, we exhibit a triangulated category C with the following properties. On the one hand, the d-cluster tilting subcategories of C have very simple…

Representation Theory · Mathematics 2015-04-22 Thorsten Holm , Peter Jorgensen

This if the final paper in the seriesContinuous Quivers of Type $A$. In this part, we generalize existing geometric models of type $A$ cluster structures to the new $\mathbf E$-clusters introduced in part (III). We also introduce an…

Representation Theory · Mathematics 2025-06-19 Job Rock

In this paper we present some results showing the good behavior of the $\tau$-invariant of a Rees algebra with integral closure and elimination (of variables).

Algebraic Geometry · Mathematics 2010-01-19 Angélica Benito

These notes are our contribution to the Proceedings of the ICM 2026. We discuss some results we have obtained (in part jointly with coauthors) regarding the representation theory of reductive algebraic groups over algebraically closed…

Representation Theory · Mathematics 2025-11-10 Pramod N. Achar , Simon Riche

We introduce a new class of clustered Moore automata (CMA), investigate their temporal behavior, and describe some applications.

Computation and Language · Computer Science 2025-03-31 András Kornai

The wall-and-chamber structure is a geometric invariant that can be associated to any algebra. In this notes we give the definition of this object and we explain its relationship with torsion classes and $\tau$-tilting theory.

Representation Theory · Mathematics 2023-02-27 Maximilian Kaipel , Hipolito Treffinger

We give a criterion allowing to verify whether or not two tilted algebras have the same relation-extension (thus correspond to the same cluster-tilted algebra). This criterion is in terms of a combinatorial configuration in the…

Representation Theory · Mathematics 2011-11-10 Ibrahim Assem , Thomas Bruestle , Ralf Schiffler

Modified gravity theories have received increased attention lately due to combined motivation coming from high-energy physics, cosmology and astrophysics. Among numerous alternatives to Einstein's theory of gravity, theories which include…

General Relativity and Quantum Cosmology · Physics 2014-11-18 Thomas P. Sotiriou , Valerio Faraoni

A family of quantum cluster algebras is introduced and studied. In general, these algebras are new, but subclasses have been studied previously by other authors. The algebras are indexed by double partitions or double flag varieties.…

Quantum Algebra · Mathematics 2012-10-09 Hans Plesner Jakobsen , Hechun Zhang

This is an introduction to some recent developments in string theory and M theory. We try to concentrate on the main physical aspects, and often leave more technical details to the original literature.

High Energy Physics - Theory · Physics 2007-05-23 Miao Li

We apply the new theory of cluster algebras of Fomin and Zelevinsky to study some combinatorial problems arising in Lie theory. This is joint work with Geiss and Schr\"oer (3, 4, 5, 6), and with Hernandez (8, 9).

Representation Theory · Mathematics 2010-09-24 Bernard Leclerc

We show how the $\tau$-cluster morphism category may be defined in terms of the wall-and-chamber structure of an algebra. This geometric perspective leads to a simplified proof that the category is well-defined.

Representation Theory · Mathematics 2023-04-20 Sibylle Schroll , Aran Tattar , Hipolito Treffinger , Nicholas J. Williams

We introduce $(\sigma,\tau)$-algebras as a framework for twisted differential calculi over noncommutative, as well as commutative, algebras with motivations from the theory of $\sigma$-derivations and quantum groups. A…

Quantum Algebra · Mathematics 2022-07-19 Joakim Arnlind , Kwalombota Ilwale