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We formalize the way in which one can think about cluster algebras of infinite rank by showing that every rooted cluster algebra of infinite rank can be written as a colimit of rooted cluster algebras of finite rank. Relying on the proof of…

Representation Theory · Mathematics 2017-07-20 Sira Gratz

The paper is motivated by an analogy between cluster algebras and Kac-Moody algebras: both theories share the same classification of finite type objects by familiar Cartan-Killing types. However the underlying combinatorics beyond the two…

Combinatorics · Mathematics 2019-03-05 Michael Barot , Christof Geiss , Andrei Zelevinsky

In this paper, we apply the techniques developed in [5] to present several consequences of studying UMP algebras and the ramifications graph of a monomial bound quiver algebra. Specifically, we prove that every weakly connected component of…

Representation Theory · Mathematics 2025-08-20 Jhony Caranguay-Mainguez , Andrés Franco , David Reynoso-Mercado , Pedro Rizzo

The cluster multiplication formulas for a generalized quantum cluster algebra of Kronecker type are explicitly given. Furthermore, a positive bar-invariant $\mathbb{Z}[q^{\pm\frac{1}{2}}]$-basis of this algebra is constructed.

Quantum Algebra · Mathematics 2023-04-04 Liqian Bai , Xueqing Chen , Ming Ding , Fan Xu

Strongly $\mathbb{Z}$-graded algebras or principal circle bundles and associated line bundles or invertible bimodules over a class of generalized Weyl algebras $\mathcal{B}(p;q, 0)$ (over a ring of polynomials in one variable) are…

Quantum Algebra · Mathematics 2015-07-22 Tomasz Brzeziński

There are two main types of objects in the theory of cluster algebras: the upper cluster algebras ${{\boldsymbol{\mathsf U}}}$ with their Gekhtman-Shapiro-Vainshtein Poisson brackets and their root of unity quantizations…

Representation Theory · Mathematics 2023-02-28 Greg Muller , Bach Nguyen , Kurt Trampel , Milen Yakimov

In this paper we initiate the study of cyclic algebraic geometry codes. We give conditions to construct cyclic algebraic geometry codes in the context of algebraic function fields over a finite field by using their group of automorphisms.…

Algebraic Geometry · Mathematics 2021-06-17 Gustavo Cabaña , María Chara , Ricardo A. Podestá , Ricardo Toledano

Lots of research focuses on the combinatorics behind various bases of cluster algebras. This paper studies the natural basis of a type A cluster algebra, which consists of all cluster monomials. We introduce a new kind of combinatorial…

Combinatorics · Mathematics 2017-06-07 Kyungyong Lee , Li Li , Ba Nguyen

We construct a graded cluster algebra structure on the Cox ring of a smooth complex variety $Z$, depending on a base cluster structure on the ring of regular functions of an open subset $Y$ of $Z$. After considering some elementary examples…

Algebraic Geometry · Mathematics 2024-12-06 Luca Francone

Let $Q$ be a finite quiver without oriented cycles and $\mathcal A(Q)$ be the coefficient-free cluster algebra with initial seed $(Q,\textbf u)$. Using the Caldero-Chapoton map, we introduce and investigate a family of generic variables in…

Representation Theory · Mathematics 2010-06-02 G. Dupont

We prove that the basis of cluster monomials of a skew-symmetric cluster algebra A of finite type is the atomic basis of A. This means that an element of A is positive if and only if it has a non-negative expansion in the basis of cluster…

Rings and Algebras · Mathematics 2011-02-21 Giovanni Cerulli Irelli

We introduce admissible group actions on cluster algebras, cluster categories and quivers with potential and study the resulting orbit spaces. The orbit space of the cluster algebra has the structure of a generalized cluster algebra. This…

Representation Theory · Mathematics 2018-12-21 Charles Paquette , Ralf Schiffler

We prove that large classes of algebras in the framework of root of unity quantum cluster algebras have the structures of maximal orders in central simple algebras and Cayley-Hamilton algebras in the sense of Procesi. We show that every…

Quantum Algebra · Mathematics 2023-01-09 Shengnan Huang , Thang T. Q. Lê , Milen Yakimov

This paper continues the study of cluster algebras initiated in math.RT/0104151. Its main result is the complete classification of the cluster algebras of finite type, i.e., those with finitely many clusters. This classification turns out…

Rings and Algebras · Mathematics 2015-06-26 Sergey Fomin , Andrei Zelevinsky

This thesis is concerned with studying the properties of gradings on several examples of cluster algebras, primarily of infinite type. We first consider two finite type cases: $B_n$ and $C_n$, completing a classification by Grabowski for…

Representation Theory · Mathematics 2018-03-07 Thomas Booker-Price

We provide a complete classification of the singularities of cluster algebras of finite type with trivial coefficients. Alongside, we develop a constructive desingularization of these singularities via blowups in regular centers over fields…

Algebraic Geometry · Mathematics 2022-06-01 Angelica Benito , Eleonore Faber , Hussein Mourtada , Bernd Schober

In this paper, we introduce a notion of unistructural cluster algebras, for which the set of cluster variables uniquely determines the clusters. We prove that cluster algebras of Dynkin type and cluster algebras of rank 2 are unistructural,…

Representation Theory · Mathematics 2013-07-19 Ibrahim Assem , Ralf Schiffler , Vasilisa Shramchenko

Cluster varieties are geometric objects that have recently found applications in several areas of mathematics and mathematical physics. This thesis studies the geometry of a large class of cluster varieties associated to compact oriented…

Algebraic Geometry · Mathematics 2018-12-27 Dylan G. L. Allegretti

The canonical bases of cluster algebras of finite types and rank 2 are given explicitly in \cite{CK2005} and \cite{SZ} respectively. In this paper, we will deduce $\mathbb{Z}$-bases for cluster algebras for affine types…

Representation Theory · Mathematics 2008-12-15 Ming Ding , Jie Xiao , Fan Xu

We give a linear algebraic classification of Auslander regular acyclic monomial algebras via the Bruhat factorisation of the Coxeter matrix. Namely, we show under mild assumptions that a monomial acyclic quiver algebra is Auslander regular…

Representation Theory · Mathematics 2026-04-03 Viktória Klász , Markus Kleinau , René Marczinzik
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