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In a recent paper by K.-H. Lee, K. Lee and M. Mills, a mutation of reflections in the universal Coxeter group is defined in association with a mutation of a quiver. A matrix representation of these reflections is determined by a linear…

Representation Theory · Mathematics 2021-08-10 Tucker J. Ervin , Blake Jackson , Kyu-Hwan Lee , Kyungyong Lee

We compute the Hilbert series of three-dimensional $\mathcal{N}=3$ quiver gauge theories by taking a specific limit of the superconformal index. Our approach introduces auxiliary fugacities associated with symmetries which, while not…

High Energy Physics - Theory · Physics 2026-02-20 Riccardo Comi , Sebastiano Garavaglia , William Harding , Noppadol Mekareeya

Exceptional sequences are important sequences of quiver representations in the study of representation theory of algebras. They are also closely related to the theory of cluster algebras and the combinatorics of Coxeter groups. We…

Representation Theory · Mathematics 2020-04-20 Emily Carrick , Alexander Garver

In 2021, Kashiwara-Kim-Oh-Park constructed cluster algebra structures on the Grothendieck rings of certain monoidal subcategories of the category of finite-dimensional representations of a quantum loop algebra, generalizing…

Representation Theory · Mathematics 2025-01-07 Alessandro Contu

We give an explicit description of the mutation classes of quivers of type \tilde{A}_n. Furthermore, we provide a complete classification of cluster tilted algebras of type \tilde{A}_n up to derived equivalence. We show that the bounded…

Representation Theory · Mathematics 2012-02-15 Janine Bastian

Cluster algebras, introduced by Fomin and Zelevinsky through the process of quiver mutation, have become central objects in modern algebra and geometry, linking combinatorial constructions with diverse mathematical domains such as…

Combinatorics · Mathematics 2025-12-10 Eric Bucher , Elizabeth Howard

We give a representation-theoretic bijection between rooted labeled forests with $n$ vertices and complete exceptional sequences for the quiver of type $A_n$ with straight orientation. The ascending and descending vertices in the forest…

Representation Theory · Mathematics 2025-01-03 Kiyoshi Igusa , Emre Sen

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

In this paper we introduce a new class of $K$-algebras associated with quivers. Given any finite chain $\mathbf{K}_r: K=K_0\subseteq K_1\subseteq ... \subseteq K_r$ of fields and a chain $\mathbf{E}_r : H_0\subset H_1\subset ... \subset…

Rings and Algebras · Mathematics 2009-09-03 Pere Ara , Miquel Brustenga

Quiver mutation plays a crucial role in the definition of cluster algebras by Fomin and Zelevinsky. It induces an equivalence relation on the set of all quivers without loops and two-cycles. A quiver is called mutation-acyclic if it is…

Representation Theory · Mathematics 2011-02-21 Matthias Warkentin

We study the Grothendieck classes of quiver cycles, i.e. invariant closed subvarieties of the representation space of a quiver. For quivers without oriented loops we show that the class of a quiver cycle is determined by quiver…

Algebraic Geometry · Mathematics 2007-08-28 Anders Skovsted Buch

We investigate quiver representations over $\mathbb{F}_1$. Coefficient quivers are combinatorial gadgets equivalent to $\mathbb{F}_1$-representations of quivers. We focus on the case when the quiver $Q$ is a pseudotree. For such quivers, we…

Representation Theory · Mathematics 2023-01-19 Jaiung Jun , Jaehoon Kim , Alex Sistko

The unrestricted red size of a quiver is the maximal number of red vertices in its framed quiver after any given mutation sequence. In a 2023 paper by E. Bucher and J. Machacek, it was shown that connected, mutation-finite quivers either…

Combinatorics · Mathematics 2024-08-19 Tucker J. Ervin

Let $\Lambda$ be a cluster-tilted algebra of finite type over an algebraically closed field and $B$ be one of the associated tilted algebras. We show that the $B$-modules, ordered form right to left in the Auslander-Reiten quiver of…

Representation Theory · Mathematics 2020-01-07 Alireza Nasr-Isfahani

Machine learning is becoming an increasingly valuable tool in mathematics, enabling one to identify subtle patterns across collections of examples so vast that they would be impossible for a single researcher to feasibly review and analyze.…

Machine Learning · Computer Science 2025-08-05 Jesse He , Helen Jenne , Herman Chau , Davis Brown , Mark Raugas , Sara Billey , Henry Kvinge

In this paper, we study algebras of global dimension at most 2 whose generalized cluster category is equivalent to the cluster category of an acyclic quiver which is either a tree or of type $\widetilde{A}$. We are particularly interested…

Representation Theory · Mathematics 2015-01-14 Claire Amiot , Steffen Oppermann

We introduce the notion of ''maximal rank type'' for representations of quivers, which requires certain collections of maps involved in the representation to be of maximal rank. We show that real root representations of quivers are of…

Representation Theory · Mathematics 2008-07-14 Marcel Wiedemann

In a previous paper the authors have attached to each Dynkin quiver an associative algebra. The definition is categorical and the algebra is used to construct desingularizations of arbitrary quiver Grassmannians. In the present paper we…

Algebraic Geometry · Mathematics 2013-02-22 Giovanni Cerulli Irelli , Evgeny Feigin , Markus Reineke

We generalize Derksen-Weyman-Zelevinsky's theory of quivers with potentials (QPs) to an $H$-based setting by considering quivers with exactly one loop at each vertex, asking the loops to be nilpotent and so attaching a truncated polynomial…

Representation Theory · Mathematics 2025-09-25 Xiaoyue Lin

Exceptional sequences are certain ordered sequences of quiver representations. We introduce a class of objects called strand diagrams and use this model to classify exceptional sequences of representations of a quiver whose underlying graph…

Representation Theory · Mathematics 2016-11-15 Alexander Garver , Kiyoshi Igusa , Jacob P. Matherne , Jonah Ostroff