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We construct the Laurent phenomenon algebras the cluster variables of which satisfy the discrete BKP equation and other difference equations obtained by its reduction. These Laurent phenomenon algebras are constructed from seeds with a…

Mathematical Physics · Physics 2016-08-24 Naoto Okubo

It was shown by Fomin, Shapiro and Thurston that some cluster algebras arise from orientable surfaces. Subsequently, Dupont and Palesi extended this construction to non-orientable surfaces. We link this framework to Lam and Pylyavskyy's…

Combinatorics · Mathematics 2016-08-18 Jon Wilson

Laurent phenomenon algebras, first introduced by Lam and Pylyavskyy, are a generalization of cluster algebras that still possess many salient features of cluster algebras. Graph Laurent phenomenon algebras, defined by Lam and Pylyavskyy,…

Representation Theory · Mathematics 2025-10-07 Guilherme Zeus Dantas e Moura , Ramanuja Charyulu Telekicherla Kandalam , Dora Woodruff

LP algebras, introduced by Lam and Pylyavskyy, are a generalization of cluster algebras. These algebras are known to have the Laurent phenomenon, but positivity remains conjectural. Graph LP algebras are finite LP algebras encoded by a…

Combinatorics · Mathematics 2022-11-28 Esther Banaian , Sunita Chepuri , Elizabeth Kelley , Sylvester W. Zhang

In a cluster algebra, a subset of initial cluster variables can be specialised in such a way that all elements of the resulting algebra become polynomial in the remaining variables.

Rings and Algebras · Mathematics 2026-04-01 Andrei Zabolotskii

It was shown by Fock, Goncharov and Fomin, Shapiro, Thurston that some cluster algebras arise from triangulated orientable suraces. Subsequently Dupont and Palesi generalised this construction to include unpunctured non-orientable surfaces,…

Combinatorics · Mathematics 2018-02-21 Jon Wilson

Generalized quantum cluster algebras introduced in [1] are quantum deformation of generalized cluster algebras of geometric types. In this paper, we prove that the Laurent phenomenon holds in these generalized quantum cluster algebras. We…

Quantum Algebra · Mathematics 2022-03-15 Liqian Bai , Xueqing Chen , Ming Ding , Fan Xu

We introduce a class of commutative superalgebras generalizing cluster algebras. A cluster superalgebra is defined by a hypergraph called an "extended quiver", and transformations called mutations. We prove the super analog of the "Laurent…

Combinatorics · Mathematics 2016-11-08 Valentin Ovsienko

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

We consider a family of nonlinear recurrences with the Laurent property. Although these recurrences are not generated by mutations in a cluster algebra, they fit within the broader framework of Laurent phenomenon algebras, as introduced…

Exactly Solvable and Integrable Systems · Physics 2017-05-17 A. N. W. Hone , C. Ward

We generalize Fomin and Zelevinsky's cluster algebras by allowing exchange polynomials to be arbitrary irreducible polynomials, rather than binomials.

Representation Theory · Mathematics 2016-01-22 Thomas Lam , Pavlo Pylyavskyy

We continue the study of cluster algebras initiated in math.RT/0104151 and math.RA/0208229. We develop a new approach based on the notion of an upper cluster algebra, defined as an intersection of certain Laurent polynomial rings.…

Representation Theory · Mathematics 2007-05-23 Arkady Berenstein , Sergey Fomin , Andrei Zelevinsky

A recurrence relation is said to have the Laurent property if all of its iterates are Laurent polynomials in the initial values with integer coefficients. We consider a family of nonlinear recurrences with the Laurent property, which were…

Exactly Solvable and Integrable Systems · Physics 2020-10-28 Andrew N. W. Hone , Joe Pallister

We give a geometric interpretation of cluster varieties in terms of blowups of toric varieties. This enables us to provide, among other results, an elementary geometric proof of the Laurent phenomenon for cluster algebras (of geometric…

Algebraic Geometry · Mathematics 2014-04-16 Mark Gross , Paul Hacking , Sean Keel

We mainly introduce an abstract pattern to study cluster algebras. Cluster algebras, generalized cluster algebras and Laurent phenomenon algebras are unified in the language of generalized Laurent phenomenon algebras (briefly, GLP algebras)…

Representation Theory · Mathematics 2017-11-27 Peigen Cao , Fang Li

In this paper we give a graph theoretic combinatorial interpretation for the cluster variables that arise in most cluster algebras of finite type. In particular, we provide a family of graphs such that a weighted enumeration of their…

Combinatorics · Mathematics 2007-11-05 Gregg Musiker

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

A cluster is a finite set of generators of a cluster algebra. The Laurent Phenomenon of Fomin and Zelevinsky says that any element of a cluster algebra can be written as a Laurent polynomial in terms of any cluster. The upper cluster…

Commutative Algebra · Mathematics 2018-09-21 Matthew R. Mills

In this paper we find the exchange graph of the rank n binomial Laurent phenomenon algebra associated to the complete graph on n vertices. More specifically, we prove that this exchange graph is isomorphic to that of the rank n linear…

Representation Theory · Mathematics 2015-12-11 Stella Gastineau , Gwyneth Moreland

One of the remarkable properties of cluster algebras is that any cluster, obtained from a sequence of mutations from an initial cluster, can be written as a Laurent polynomial in the initial cluster (known as the "Laurent phenomenon").…

Mathematical Physics · Physics 2014-04-01 Allan P Fordy
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