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Related papers: Cluster algebras and continued fractions

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This is an introductory survey on cluster algebras and their (additive) categorification using derived categories of Ginzburg algebras. After a gentle introduction to cluster combinatorics, we review important examples of coordinate rings…

Representation Theory · Mathematics 2012-03-14 Bernhard Keller

Associated to any acyclic cluster algebra is a corresponding triangulated category known as the cluster category. It is known that there is a one-to-one correspondence between cluster variables in the cluster algebra and exceptional…

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

This paper studies clustering algorithms for dynamically evolving graphs $\{G_t\}$, in which new edges (and potential new vertices) are added into a graph, and the underlying cluster structure of the graph can gradually change. The paper…

Data Structures and Algorithms · Computer Science 2024-06-06 Steinar Laenen , He Sun

We clarify the natural cluster algebra of type A that exists in a residual and tropical form in the kinematical space as suggested in 1711.09102 by the use of triangulations, mutations and associahedron on the definition of scattering…

High Energy Physics - Theory · Physics 2017-12-19 Marcus A. C. Torres

Cluster algebras are a recent topic of study and have been shown to be a useful tool to characterize structures in several knowledge fields. An important problem is to establish whether or not a given cluster algebra is of finite type.…

Commutative Algebra · Mathematics 2015-07-15 Elisângela Silva Dias , Diane Castonguay

In this paper we introduce a new approach for organizing algebras of global dimension at most 2. We introduce the notion of cluster equivalence for these algebras, based on whether their generalized cluster categories are equivalent. We are…

Representation Theory · Mathematics 2012-03-08 Claire Amiot , Steffen Oppermann

In connection with cluster algebras, snake graphs and q-integers, Kyungyong Lee and Ralf Schiffler recently found a formula for computing the (normalized) Jones polynomials of rational links in terms of continued fraction expansion of…

Geometric Topology · Mathematics 2022-09-19 Michihisa Wakui

We describe a framework for encoding cluster combinatorics using categorical methods. We give a definition of an abstract cluster structure, which captures the essence of cluster mutation at a tropical level and show that cluster algebras,…

Rings and Algebras · Mathematics 2025-10-06 Jan E. Grabowski , Sira Gratz

We introduce the notion of matrices graph, defining continued fraction algorithms where the past and the future are almost independent. We provide an algorithm to convert more general algorithms into matrices graphs. We present an algorithm…

Dynamical Systems · Mathematics 2023-11-17 Paul Mercat

We calculate the cluster modular groups of affine and doubly extended typecluster algebras in a uniform way by introducing a new family of quivers. We use this uniformdescription to construct a natural finite quotient of the cluster complex…

Combinatorics · Mathematics 2025-04-08 Dani Kaufman , Zachary Greenberg

In this paper, we will first summarize known results concerning continued fractions. Then we will limit our consideration to continued fractions of quadratic numbers. The second author described periods and sometimes precise form of…

Combinatorics · Mathematics 2023-08-17 Lubomíra Balková , Aranka Hrušková

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

For cluster algebras of surface type, Musiker, Schiffler and Williams gave a formula for cluster variables in terms of perfect matchings of snake graphs. Building on this, we provide a simple determinantal formula for cluster variables via…

Combinatorics · Mathematics 2025-11-06 Javier De Loera

We study a family of generalized continued fractions, which are defined by a pair of substitution sequences in a finite alphabet. We prove that they are stammering sequences, in the sense of Adamczewski and Bugeaud. We also prove that this…

Number Theory · Mathematics 2020-04-15 Túlio O. Carvalho

This paper establishes a connection between binary subwords and perfect matchings of a snake graph, an important tool in the theory of cluster algebras. Every binary expansion w can be associated to a piecewise-linear poset P and a snake…

Combinatorics · Mathematics 2022-02-21 Rachel Bailey , Emily Gunawan

We find Stieltjes-type and Jacobi-type continued fractions for some "master polynomials" that enumerate permutations, set partitions or perfect matchings with a large (sometimes infinite) number of simultaneous statistics. Our results…

Combinatorics · Mathematics 2022-04-19 Alan D. Sokal , Jiang Zeng

The connection between a Taylor series and a continued-fraction involves a nonlinear relation between the Taylor coefficients $\{ a_n \}$ and the continued-fraction coefficients $\{ b_n \}$. In many instances it turns out that this…

High Energy Physics - Theory · Physics 2009-10-22 Carl M. Bender , Kimball A. Milton

The subject considered in this paper has, at least, three points of interest. Suppose that we have a sequence of one-dimensional analytic varieties in a domain in $\Bbb C^n$. The cluster of this sequence consists from all points in the…

Complex Variables · Mathematics 2009-09-25 Evgeny A. Poletsky

We define an equivalence relation on periodic continued fractions with partial quotients in a ring $\mathcal{O} \subseteq \mathbf{C}$, a group law on these equivalence classes, and a map from these equivalence classes to matrices in…

Number Theory · Mathematics 2023-07-07 Bradley W. Brock , Bruce W. Jordan , Lawren Smithline

Recently, it has been shown that the Jones polynomial, in [LS19], and the Alexander polynomial, in [NT18], of rational knots can be obtained by specializing $F$-polynomials of cluster variables. At the core of both results are continued…

Geometric Topology · Mathematics 2019-10-24 Matthew Yacavone