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$\tau$-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

In the acyclic case, we establish a one-to-one correspondence between the tilting objects of the cluster category and the clusters of the associated cluster algebra. This correspondence enables us to solve conjectures on cluster algebras.…

Representation Theory · Mathematics 2007-05-23 Philippe Caldero , Bernhard Keller

We associate a quiver to a quasi-triangulation of a non-orientable marked surface and define a notion of quiver mutation that is compatible with quasi-cluster algebra mutation defined by Dupont and Palesi. Moreover, we use our quiver to…

Combinatorics · Mathematics 2022-01-19 Véronique Bazier-Matte , Fenghuan He , Ruiyan Huang , Hanyi Yuo , Kayla Wright

In this paper we study multiserial and special multiserial algebras. These algebras are a natural generalization of biserial and special biserial algebras to algebras of wild representation type. We define a module to be multiserial if its…

Representation Theory · Mathematics 2016-08-08 Edward L. Green , Sibylle Schroll

For a finite dimensional hereditary algebra, we consider: exceptional sequences in the category of finite dimensional modules, silting objects in the bounded derived category, and m-cluster tilting objects in the m-cluster category. There…

Representation Theory · Mathematics 2010-05-04 Aslak Bakke Buan , Idun Reiten , Hugh Thomas

This is a survey article for "Handbook of Linear Algebra", 2nd ed., Chapman & Hall/CRC, 2014. An informal introduction to representations of quivers and finite dimensional algebras from a linear algebraist's point of view is given. The…

Representation Theory · Mathematics 2013-12-31 Roger A. Horn , Vladimir V. Sergeichuk

Cluster-tilted algebras are trivial extensions of tilted algebras. This correspondence induces a surjective map from tilted algebras to cluster-tilted algebras. If B is a cluster-tilted algebra, we use the fibre of B under this map to study…

Representation Theory · Mathematics 2009-12-03 Ibrahim Assem , Thomas Bruestle , Ralf Schiffler

In this paper, we present an explicit and purely combinatorial characterization of the $m$-coloured quivers that appear within the $m$-coloured mutation class of a quiver of type $\mathbb{D}_n$. The $m$-coloured mutation, as defined by Buan…

Representation Theory · Mathematics 2026-04-28 Viviana Gubitosi , Claudio Qureshi

We provide a complete classification of all tame and wild symmetric special multiserial algebras in terms of the underlying Brauer configuration. Our classification contains the symmetric special multiserial algebras of finite…

Representation Theory · Mathematics 2018-04-20 Drew Duffield

We initiate the study of applications of machine learning to Seiberg duality, focusing on the case of quiver gauge theories, a problem also of interest in mathematics in the context of cluster algebras. Within the general theme of Seiberg…

High Energy Physics - Theory · Physics 2020-12-22 Jiakang Bao , Sebastián Franco , Yang-Hui He , Edward Hirst , Gregg Musiker , Yan Xiao

Kauer moves are local moves of an edge in a Brauer graph that yield derived equivalences between Brauer graph algebras [Kau98]. These derived equivalences may be interpreted in terms of silting mutations. In this paper, we generalize the…

Representation Theory · Mathematics 2023-05-11 Valentine Soto

We define an operation which associates to a pair (B,M) where B is a cluster-tilted algebra and M is a B-module which lies in a local slice of B, a new cluster-tilted algebra B'. In terms of the quivers, this operation corresponds to adding…

Representation Theory · Mathematics 2011-12-19 Miki Oryu , Ralf Schiffler

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

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

Comparing the module categories of an algebra and of the endomorphism algebra of a given support $\tau$-tilting module, we give a generalization of the Brenner-Butler's tilting theorem in the framework of $\tau$-tilting theory. Afterwards…

Representation Theory · Mathematics 2018-05-08 Hipolito Treffinger

We introduce a new class of symmetric algebras, which we call hybrid algebras. This class contains on one extreme Brauer graph algebras, and on the other extreme general weighted surface algebras. We show that hybrid algebras are precisely…

Representation Theory · Mathematics 2024-01-09 Karin Erdmann , Andrzej Skowroński

Let $\Lambda$ be a hereditary algebra, $B_0=End_\Lambda(T_0)$ be a tilted algebra. We will construct tilting $B_0$-modules from tilting $\Lambda$-modules and use this result to show how tilting quivers of BB-tilted algebras can be obtained…

Representation Theory · Mathematics 2023-03-21 Hongwei Peng

The purpose of this paper is to give an explicit formula for the number of non-isomorphic cluster-tilted algebras of type $A_n$, by counting the mutation class of any quiver with underlying graph $A_n$. It will also follow that if $T$ and…

Representation Theory · Mathematics 2008-04-16 Hermund André Torkildsen

Let $Q$ be a finite quiver without oriented cycles and $k$ an algebraically closed field.In this paper we establish a connection between cluster algebras and the representation theory of the path algebra $kQ$, in terms of the spectral…

Representation Theory · Mathematics 2010-11-29 Elsa Fernández , María Inés Platzeck

Quivers (directed graphs) and species (a generalization of quivers) and their representations play a key role in many areas of mathematics including combinatorics, geometry, and algebra. Their importance is especially apparent in their…

Representation Theory · Mathematics 2011-09-12 Joel Lemay