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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…

环与代数 · 数学 2015-06-26 Sergey Fomin , Andrei Zelevinsky

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…

组合数学 · 数学 2019-03-05 Michael Barot , Christof Geiss , Andrei Zelevinsky

In 2003, Fomin and Zelevinsky obtained Cartan-Killing type classification of all cluster algebras of finite type, i.e. cluster algebras having only finitely many distinct cluster variables. A wider class of cluster algebras is formed by…

组合数学 · 数学 2019-10-25 Anna Felikson , Michael Shapiro , Pavel Tumarkin

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…

代数几何 · 数学 2022-06-01 Angelica Benito , Eleonore Faber , Hussein Mourtada , Bernd Schober

In this paper, we prove Conjecture 4.8 of "Cluster algebras IV" by S. Fomin and A. Zelevinsky, stating that the mutation classes of rectangular matrices associated with cluster algebras of finite type are precisely those classes which are…

组合数学 · 数学 2011-06-30 Ahmet Seven

Barot, Geiss and Zelevinsky define a notion of a ``cyclically orientable graph'' and use it to devise a test for whether a cluster algebra is of finite type. Barot, Geiss and Zelivinsky's work leaves open the question of giving an efficient…

组合数学 · 数学 2007-05-23 David E Speyer

We give a uniform geometric realization for the cluster algebra of an arbitrary finite type with principal coefficients at an arbitrary acyclic seed. This algebra is realized as the coordinate ring of a certain reduced double Bruhat cell in…

环与代数 · 数学 2008-05-19 Shih-Wei Yang , Andrei Zelevinsky

We complete classification of mutation-finite cluster algebras by extending the technique derived by Fomin, Shapiro, and Thurston to skew-symmetrizable case. We show that for every mutation-finite skew-symmetrizable matrix a diagram…

组合数学 · 数学 2019-10-25 Anna Felikson , Michael Shapiro , Pavel Tumarkin

We show that cluster algebras do not contain non-trivial units and that all cluster variables are irreducible elements. Both statements follow from Fomin and Zelevinsky's Laurent phenomenon. As an application we give a criterion for a…

环与代数 · 数学 2013-05-10 Christof Geiß , Bernard Leclerc , Jan Schröer

This paper studies cluster algebras locally, by identifying a special class of localizations which are themselves cluster algebras. A `locally acyclic cluster algebra' is a cluster algebra which admits a finite cover (in a geometric sense)…

代数几何 · 数学 2014-05-19 Greg Muller

We classify mutation-finite cluster algebras with arbitrary coefficients of geometric type.

组合数学 · 数学 2023-08-29 Anna Felikson , Pavel Tumarkin

We investigate the cluster-tilted algebras of finite representation type over an algebraically closed field. We give an explicit description of the relations for the quivers for finite representation type. As a consequence we show that a…

表示论 · 数学 2020-12-21 Aslak Bakke Buan , Bethany Marsh , Idun Reiten

Cluster algebras have recently become an important player in mathematics and physics. In this work, we investigate them through the lens of modern data science, specifically with techniques from network science and machine learning. Network…

组合数学 · 数学 2024-02-26 Pierre-Philippe Dechant , Yang-Hui He , Elli Heyes , Edward Hirst

Matrices are the most common representations of graphs. They are also used for the representation of algebras and cluster algebras. This paper shows some properties of matrices in order to facilitate the understanding and locating…

离散数学 · 计算机科学 2015-03-12 Elisângela Silva Dias , Diane Castonguay , Mitre Costa Dourado

We describe a new way to relate an acyclic, skew-symmetrizable cluster algebra to the representation theory of a finite dimensional hereditary algebra. This approach is designed to explain the c-vectors of the cluster algebra. We obtain a…

表示论 · 数学 2012-03-02 David Speyer , Hugh Thomas

We continue our investigation on denominator conjecture of Fomin and Zelevinsky for cluster algebras via geometric models initialed in \cite{FG22}. In this paper, we confirm the denominator conjecture for cluster algebras of finite type.…

表示论 · 数学 2024-11-19 Changjian Fu , Shengfei Geng

We study the notion of positive and negative complexity of pairs of objects in cluster categories. The first main result shows that the maximal complexity occurring is either one, two or infinite, depending on the representation type of the…

范畴论 · 数学 2010-01-06 Petter Andreas Bergh , Steffen Oppermann

We provide a complete classification of the singularities of cluster algebras of finite cluster type. This extends our previous work about the case of trivial coefficients. Additionally, we classify the singularities of cluster algebras for…

代数几何 · 数学 2025-09-23 Angélica Benito , Eleonore Faber , Hussein Mourtada , Bernd Schober

In this paper, we study combinatorial properties of quasi-Cartan companions defined by the c-vectors of acyclic skew-symmetrizable cluster algebras. In particular, we show that the diagram of any skew-symmetrizable matrix associated with an…

组合数学 · 数学 2018-02-27 Ahmet Seven

Satisfiability of Boolean circuits is among the most known and important problems in theoretical computer science. This problem is NP-complete in general but becomes polynomial time when restricted either to monotone gates or linear gates.…

计算复杂性 · 计算机科学 2017-10-24 Paweł M. Idziak , Jacek Krzaczkowski
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