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Related papers: Cluster scattering coefficients in rank 2

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The purpose of this paper is to translate the expression of rank 2 cluster scattering diagrams via dilogarithm elements into via formal power series. As a corollary, we prove some conjectures introduced by Thomas Elgin, Nathan Reading, and…

Combinatorics · Mathematics 2025-12-03 Ryota Akagi

In this paper, we prove the consistency relations of rank $2$ cluster scattering diagrams of affine type by using the pentagon relation.

Quantum Algebra · Mathematics 2023-09-06 Kodai Matsushita

We study rank-2 cluster scattering diagrams through moduli spaces of quiver representations and a recently developed combinatorial framework of tight gradings. Combining quiver-theoretic and combinatorial methods, we prove and extend a…

Combinatorics · Mathematics 2025-11-19 Amanda Burcroff , Kyungyong Lee , Lang Mou , Gregg Musiker , Markus Reineke

Scattering diagrams arose in the context of mirror symmetry, but a special class of scattering diagrams (the cluster scattering diagrams) were recently developed to prove key structural results on cluster algebras. We use the connection to…

Combinatorics · Mathematics 2026-05-21 Nathan Reading

We give more precise statements of Fock-Goncharov duality conjecture for cluster varieties parametrizing ${\rm SL}_{2}/{\rm PGL}_{2}$-local systems on the once punctured torus. Then we prove these statements. Along the way, using distinct…

Algebraic Geometry · Mathematics 2020-03-13 Yan Zhou

We review some important results by Gross, Hacking, Keel, and Kontsevich on cluster algebra theory, namely, the column sign-coherence of $C$-matrices and the Laurent positivity, both of which were conjectured by Fomin and Zelevinsky. We…

Combinatorics · Mathematics 2023-02-23 Tomoki Nakanishi

We study the polygons defining the dominance order on $\mathbf{g}$-vectors in cluster algebras of rank 2.

Combinatorics · Mathematics 2022-11-10 Dylan Rupel , Salvatore Stella

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…

Algebraic Geometry · Mathematics 2025-09-23 Angélica Benito , Eleonore Faber , Hussein Mourtada , Bernd Schober

Clifford indices of vector bundles on algebraic curves were introduced in a previous paper of the authors. In this paper we study bundles of rank 2 which compute these Clifford indices. This is of particular interest in the light of…

Algebraic Geometry · Mathematics 2014-01-31 H. Lange , P. E. Newstead

In this paper, we study wall elements of rank 2 cluster scattering diagrams based on dilogarithm elements. We derive two major results. First, we give a method to calculate wall elements in lower degrees. By this method, we may see the…

Combinatorics · Mathematics 2024-01-10 Ryota Akagi

We introduce a new class of combinatorial objects, named tight gradings, which are certain nonnegative integer-valued functions on maximal Dyck paths. Using tight gradings, we derive a manifestly positive formula for any wall-function in a…

Combinatorics · Mathematics 2025-03-06 Amanda Burcroff , Kyungyong Lee , Lang Mou

This is a first step guide to the theory of cluster algebras. We especially focus on basic notions, techniques, and results concerning seeds, cluster patterns, and cluster algebras.

Combinatorics · Mathematics 2023-02-23 Tomoki Nakanishi

The random networks enriched with additional structures as metric and group-symmetry in background metric space are investigated. The important quantities like he clustering coefficient as well as the mean degree of separation in such…

Statistics Theory · Mathematics 2012-09-03 Michal Demetrian , Martin Nehez

We construct scattering diagrams for Chekhov-Shapiro's generalized cluster algebras where exchange polynomials are factorized into binomials, generalizing the cluster scattering diagrams of Gross, Hacking, Keel and Kontsevich. They turn out…

Algebraic Geometry · Mathematics 2024-10-23 Lang Mou

In the framework of the Time Dependent Scattering Theory we discuss three forms of Cluster Separability as well as the conditions for the representation of the scattering system dynamics implied by their respective use.

Nuclear Theory · Physics 2008-02-03 Mladen Damjanovic , Zvonko Maric

We conjecture a new set of analytic relations for scattering amplitudes in planar N=4 super Yang-Mills theory. They generalise the Steinmann relations and are expressed in terms of the cluster algebras associated to Gr(4,n). In terms of the…

High Energy Physics - Theory · Physics 2018-04-25 James Drummond , Jack Foster , Omer Gurdogan

In this note, we give some new families of two-stage spaces for which the torus rank conjecture is affirmed.

Algebraic Topology · Mathematics 2025-08-19 Yanlong Hao , Xiugui Liu , Qianwen Sun

The 2-adic valuation of the Stirling numbres is examined. We conjecture pattrens about the distributions of these valuations in residue classes modulo powers of 2.

Number Theory · Mathematics 2007-07-23 Tewodros Amdeberhan , Dante Manna , Victor H. Moll

We consider the mutation invariants of cluster algebras of rank 2. We characterize the mutation invariants of finite type. Two examples are provided for the affine type and we prove the non-existence of Laurent mutation invariants of…

Representation Theory · Mathematics 2024-05-07 Zhichao Chen , Zixu Li

In 2013, Lee, Li, and Zelevinsky introduced combinatorial objects called compatible pairs to construct the greedy bases for rank-2 cluster algebras, consisting of indecomposable positive elements including the cluster monomials.…

Combinatorics · Mathematics 2024-09-24 Amanda Burcroff , Kyungyong Lee , Lang Mou
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