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We show that, for any cluster-tilted algebra of finite representation type over an algebraically closed field, the following three definitions of a maximal green sequence are equivalent: (1) the usual definition in terms of Fomin-Zelevinsky…

Representation Theory · Mathematics 2018-12-11 Kiyoshi Igusa

Maximal green sequences appear in the study of Fomin-Zelevinsky's cluster algebras. They are useful for computing refined Donaldson-Thomas invariants, constructing twist automorphisms and proving the existence of theta bases and generic…

Representation Theory · Mathematics 2020-12-03 Laurent Demonet , Bernhard Keller

It is known that the existence of a maximal green sequence for a quiver associated to surfaces is equivalent to the equality of the cluster algebra and upper cluster algebra generated by the quiver. This paper makes the first steps in…

Combinatorics · Mathematics 2026-01-23 Hin Chung Henry Tsang

Maximal green sequences are particular sequences of quiver mutations appearing in the context of quantum dilogarithm identities and supersymmetric gauge theory. Interpreting maximal green sequences as paths in various natural posets arising…

Representation Theory · Mathematics 2013-03-01 Thomas Brüstle , Grégoire Dupont , Matthieu Pérotin

CGL extensions, named after G. Cauchon, K. Goodearl, and E. Letzter, are a special class of noncommutative algebras that are iterated Ore extensions of associative algebras with compatible torus actions. Examples of CGL extensions include…

Quantum Algebra · Mathematics 2018-08-30 Yipeng Mi

Given a framed quiver, i.e. one with a frozen vertex associated to each mutable vertex, there is a concept of green mutation, as introduced by Keller. Maximal sequences of such mutations, known as maximal green sequences, are important in…

Combinatorics · Mathematics 2017-10-03 Alexander Garver , Gregg Musiker

A maximal green sequence introduced by B. Keller is a certain sequence of quiver mutations at green vertices. T. Br\"ustle, G. Dupont and M. P\'erotin showed that for an acyclic quiver, maximal green sequences are realized as maximal paths…

Representation Theory · Mathematics 2015-07-13 Ryoichi Kase

Maximal green sequences were introduced as combinatorical counterpart for Donaldson-Thomas invariants for 2-acyclic quivers with potential by B. Keller. We take the categorical notion and introduce maximal green sequences for hearts of…

Representation Theory · Mathematics 2015-05-27 Magnus Engenhorst

Given a marked surface (S,M) we can add arcs to the surface to create a triangulation, T, of that surface. For each triangulation, T, we can associate a cluster algebra. In this paper we will consider the torus of genus n with two interior…

Combinatorics · Mathematics 2014-12-12 Eric Bucher

Various coordinate rings of varieties appearing in the theory of Poisson Lie groups and Poisson homogeneous spaces belong to the large, axiomatically defined class of symmetric Poisson nilpotent algebras, e.g. coordinate rings of Schubert…

Commutative Algebra · Mathematics 2018-01-24 K. R. Goodearl , M. T. Yakimov

A major direction in the theory of cluster algebras is to construct (quantum) cluster algebra structures on the (quantized) coordinate rings of various families of varieties arising in Lie theory. We prove that all algebras in a very large…

Quantum Algebra · Mathematics 2015-08-14 K. R. Goodearl , M. T. Yakimov

We investigate the existence and non-existence of maximal green sequences for quivers arising from weighted projective lines. Let $Q$ be the Gabreil quiver of the endomorphism algebra of a basic cluster-tilting object in the cluster…

Representation Theory · Mathematics 2024-02-15 Changjian Fu , Shengfei Geng

We introduce $\mathcal{Q}^N$ quivers and construct maximal green sequences for these quivers. We prove that any finite connected full subquiver of the quivers defined by Hernandez and Leclerc, arising in monoidal categorifications of…

Commutative Algebra · Mathematics 2025-01-15 Jingmin Guo , Bing Duan , Yanfeng Luo

The understanding of the topology of the spectra of quantum Schubert cell algebras hinges on the description of their prime factors by ideals invariant under the maximal torus of the ambient Kac-Moody group. We give an explicit description…

Quantum Algebra · Mathematics 2016-07-14 T. H. Lenagan , M. T. Yakimov

In this article, we study the relationship among maximal green sequences, complete forward hom-orthogonal sequences and stability functions in abelian length categories. Mainly, we firstly give a one-to-one correspondence between maximal…

Representation Theory · Mathematics 2020-04-13 Fang Li , Siyang Liu

Maximal green sequences are important objects in representation theory, cluster algebras, and string theory. It is an open problem to determine what lengths are achieved by the maximal green sequences of a quiver. We combine the…

Combinatorics · Mathematics 2018-09-06 Alexander Garver , Thomas McConville , Khrystyna Serhiyenko

It is known that Green's formula over finite fields gives rise to the comultiplications of Ringel-Hall algebras and quantum groups (see\cite{Green}, also see \cite{Lusztig}). In this paper, we deduce the projective version of Green's…

Quantum Algebra · Mathematics 2008-01-10 Jie Xiao , Fan Xu

Let $\Lambda$ be a cluster-tilted algebra of finite type over an algebraically closed field and $B$ be one of the associated tilted algebras. We show that the $B$-modules, ordered form right to left in the Auslander-Reiten quiver of…

Representation Theory · Mathematics 2020-01-07 Alireza Nasr-Isfahani

We show that picture groups are directly related to maximal green sequences for valued Dynkin quivers of finite type. Namely, there is a bijection between maximal green sequences and positive expressions (words in the generators without…

Representation Theory · Mathematics 2025-06-25 Kiyoshi Igusa , Gordana Todorov

Maximal green sequences are particular sequences of mutations which were introduced by Keller in the context of quantum dilogarithm identities and independently by Cecotti-Cordova-Vafa in the context of supersymmetric gauge theory. In this…

Combinatorics · Mathematics 2012-07-27 Ahmet Seven
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