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We realize a family of generalized cluster algebras as Caldero-Chapoton algebras of quivers with relations. Each member of this family arises from an unpunctured polygon with one orbifold point of order 3, and is realized as a…

Representation Theory · Mathematics 2019-04-24 Daniel Labardini-Fragoso , Diego Velasco

The pentagram map was introduced by R. Schwartz more than 20 years ago. In 2009, V. Ovsienko, R. Schwartz and S. Tabachnikov established Liouville complete integrability of this discrete dynamical system. In 2011, M. Glick interpreted the…

Dynamical Systems · Mathematics 2017-10-25 Michael Gekhtman , Michael Shapiro , Serge Tabachnikov , Alek Vainshtein

To any walk in a quiver, we associate a Laurent polynomial. When the walk is the string of a string module over a 2-Calabi-Yau tilted algebra, we prove that this Laurent polynomial coincides with the corresponding cluster character of the…

Commutative Algebra · Mathematics 2011-03-15 Ibrahim Assem , Grégoire Dupont , Ralf Schiffler , David Smith

We study the dependence of a cluster algebra on the choice of coefficients. We write general formulas expressing the cluster variables in any cluster algebra in terms of the initial data; these formulas involve a family of polynomials…

Rings and Algebras · Mathematics 2007-05-23 Sergey Fomin , Andrei Zelevinsky

We consider two kinds of periodicities of mutations in cluster algebras. For any sequence of mutations under which exchange matrices are periodic, we define the associated T- and Y-systems. When the sequence is `regular', they are…

Quantum Algebra · Mathematics 2011-10-17 Tomoki Nakanishi

We discuss the relation between the cluster integrable systems and $q$-difference Painlev\'e equations. The Newton polygons corresponding to these integrable systems are all 16 convex polygons with a single interior point. The Painlev\'e…

Mathematical Physics · Physics 2018-02-19 M. Bershtein , P. Gavrylenko , A. Marshakov

We study consequences of a monoidal categorification of the unipotent quantum coordinate ring $A_q(\mathfrak{n}(w))$ together with the Laurent phenomenon of cluster algebras. We show that if a simple module $S$ in the category $\mathcal…

Representation Theory · Mathematics 2019-01-07 Masaki Kashiwara , Myungho Kim

We propose an extension of the Goncharov-Kenyon class of cluster integrable systems by their Hamiltonian reductions. This extension allows us to fill in the gap in cluster construction of the $q$-difference Painlev\'e equations, showing…

Exactly Solvable and Integrable Systems · Physics 2024-11-04 Mikhail Bershtein , Pavlo Gavrylenko , Andrei Marshakov , Mykola Semenyakin

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

Using the LP algebraic toolkit, Conway's original topograph is rethought of as a cluster construction, paving the way for a wider topography based on mutation-type local rules. As a remarkable application of such cluster-driven upgrade,…

Combinatorics · Mathematics 2026-04-20 Davide Dal Martello

We define an analogue of the Caldero-Chapoton map (\cite{CC}) for the cluster category of finite dimensional nilpotent representations over a cyclic quiver. We prove that it is a cluster character (in the sense of \cite{Palu}) and satisfies…

Representation Theory · Mathematics 2010-01-26 Ming Ding , Fan Xu

We study cluster algebras with principal coefficient systems that are associated to unpunctured surfaces. We give a direct formula for the Laurent polynomial expansion of cluster variables in these cluster algebras in terms of perfect…

Representation Theory · Mathematics 2008-10-21 Gregg Musiker , Ralf Schiffler

This if the final paper in the seriesContinuous Quivers of Type $A$. In this part, we generalize existing geometric models of type $A$ cluster structures to the new $\mathbf E$-clusters introduced in part (III). We also introduce an…

Representation Theory · Mathematics 2025-06-19 Job Rock

Matrix mutation appears in the definition of cluster algebras of Fomin and Zelevinsky. We give a representation theoretic interpretation of matrix mutation, using tilting theory in cluster categories of hereditary algebras. Using this, we…

Representation Theory · Mathematics 2020-12-21 Aslak Bakke Buan , Bethany Marsh , Idun Reiten

We define the cluster algebra associated with the Q-system for the Kirillov-Reshetikhin characters of the quantum affine algebra $U_q(\hat{\g})$ for any simple Lie algebra g, generalizing the simply-laced case treated in [Kedem 2007]. We…

Representation Theory · Mathematics 2009-10-20 Philippe Di Francesco , Rinat Kedem

Let $\Sigma$ be Laurent phenomenon (LP) seed of rank $n$, $\mathcal{A}(\Sigma)$, $\mathcal{U}(\Sigma)$ and $\mathcal{L}(\Sigma)$ be its corresponding Laurent phenomenon algebra, upper bound and lower bound respectively. We prove that each…

Rings and Algebras · Mathematics 2022-01-11 Qiuning Du , Fang Li

The Globally Coupled Map Lattice (GCML) is one of the basic model of the intelligence activity. We report that, in its so-called turbulent regime, periodic windows of the element maps foliate and systematically control the dynamics of the…

Chaotic Dynamics · Physics 2007-05-23 Tokuzo Shimada , Kengo Kikuchi

We consider a class of complex manifolds constructed as multiplicative quiver varieties associated with a cyclic quiver extended by an arbitrary number of arrows starting at a new vertex. Such varieties admit a Poisson structure, which is…

Exactly Solvable and Integrable Systems · Physics 2026-01-07 Maxime Fairon

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…

Combinatorics · Mathematics 2024-02-26 Pierre-Philippe Dechant , Yang-Hui He , Elli Heyes , Edward Hirst

In the network of seed mutations arising from a certain initial seed, an appropriate path emanating from the initial seed is intendedly chosen, noticing periodicity of the exchange matrices in the path each of which is assigned to the…

Exactly Solvable and Integrable Systems · Physics 2021-01-29 Atsushi Nobe , Junta Matsukidaira