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Related papers: Triangulated structures induced by mutations

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These notes are meant to provide a rapid introduction to triangulated categories. We start with the definition of an additive category and end with a glimps of tilting theory. Some exercises are included.

K-Theory and Homology · Mathematics 2007-05-23 Behrang Noohi

In the present paper we examine the relationship between several type $A$ cluster theories and structures. We define a 2D geometric model of a cluster theory, which generalizes cluster algebras from surfaces, and encode several existing…

Representation Theory · Mathematics 2022-01-03 Job Daisie Rock

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

We prove that mutation of cluster-tilting objects in triangulated 2-Calabi-Yau categories is closely connected with mutation of quivers with potentials. This gives a close connection between 2-CY-tilted algebras and Jacobian algebras…

Representation Theory · Mathematics 2012-10-30 Aslak Bakke Buan , Osamu Iyama , Idun Reiten , David Smith

We illustrate the relationship between spin networks and their dual representation by labelled triangulations of space in 2+1 and 3+1 dimensions. We apply this to the recent proposal for causal evolution of spin networks. The result is…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Fotini Markopoulou

In this work we study the connection between iterated tilted algebras and m-cluster tilted algebras. We show that an iterated tilted algebra induces an m-cluster tilted algebra. This m-cluster tilted algebra can be seen as a trivial…

Rings and Algebras · Mathematics 2012-08-21 Elsa Fernández , Isabel Pratti , Sonia Trepode

We develop the basic properties of $w$-simple-minded systems in $(-w)$-Calabi-Yau triangulated categories for $w \geq 1$. The main result is a reduction technique for negative Calabi-Yau triangulated categories. We show that the theory of…

Representation Theory · Mathematics 2018-08-09 Raquel Coelho Simoes , David Pauksztello

In this paper, we provide an interpretation of the existing reduction process for extriangulated categories in general. This process allows us to obtain a new category which, for well-known cases, admits a triangulated structure. We will…

Representation Theory · Mathematics 2025-07-08 Mindy Y. Huerta

This paper introduces the concept of distorted monoidal categories, a generalization of monoidal and braided monoidal categories that supports non-reversible and direction-sensitive tensor structures. Unlike the classical setting, where the…

Category Theory · Mathematics 2025-11-25 Joaquim Reizi Higuchi

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

We show that the category of projective modules over a graded commutative ring admits a triangulation with respect to module suspension if and only if the ring is a finite product of graded fields and exterior algebras on one generator over…

Commutative Algebra · Mathematics 2007-05-23 Mark Hovey , Keir H. Lockridge

Simple-minded systems of objects in a stable module category are defined by common properties with the set of simple modules, whose images under stable equivalences do form simple-minded systems. Over a representation-finite self-injective…

Representation Theory · Mathematics 2013-05-14 Aaron Chan , Steffen Koenig , Yuming Liu

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 present the notion of "cyclic double multicategory", as a structure in which to organise multivariable adjunctions and mates. The classic example of a 2-variable adjunction is the hom/tensor/cotensor trio of functors; we generalise this…

Category Theory · Mathematics 2012-08-24 Eugenia Cheng , Nick Gurski , Emily Riehl

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

$\tau$-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

Nakaoka and Palu introduced the notion of extriangulated categories by extracting the similarities between exact categories and triangulated categories. In this paper, we study cotorsion pairs in a Frobenius extriangulated category $\C$.…

Representation Theory · Mathematics 2018-07-20 Wen Chang , Panyue Zhou , Bin Zhu

We define a class of finite-dimensional Jacobian algebras, which are called (simple) polygon-tree algebras, as a generalization of cluster-tilted algebras of type $\D$. They are $2$-CY-tilted algebras. Using a suitable process of mutations…

Representation Theory · Mathematics 2016-04-01 Ming Lu

Using the representation theory of the subgroups SL_2(Z_p) of the modular group we investigate the induced fusion algebras in some simple examples. Only some of these representations lead to 'good' fusion algebras. Furthermore, the…

High Energy Physics - Theory · Physics 2016-09-06 W. Eholzer

The main result of this paper is that there is sometimes a triangulated equivalence between $D_Q( A )$, the $Q$-shaped derived category of an algebra $A$, and $D( B )$, the classic derived category of a different algebra $B$. By…

Representation Theory · Mathematics 2025-01-22 Sira Gratz , Henrik Holm , Peter Jorgensen , Greg Stevenson
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