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Related papers: A note on friezes of type $\Lambda_p$

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A classic result of Conway and Coxeter on frieze patterns has been generalized to a bijection between $p$-angulations of regular polygons and frieze patterns of type $\Lambda_p$. One of the features of Conway-Coxeter theory is a…

Combinatorics · Mathematics 2026-03-20 Michael Cuntz , Thorsten Holm , Peter Jorgensen

Friezes patterns are infinite arrays of numbers, in which every four neighbouring vertices arranged in a diamond satisfy the same arithmetic rule. Introduced in the late 1960s by Coxeter, and further studied by Conway and Coxeter in their…

Representation Theory · Mathematics 2026-05-18 Eleonore Faber

Frieze patterns are numerical arrangements that satisfy a local arithmetic rule. These arrangements are actively studied in connection to the theory of cluster algebras. In the setting of cluster algebras, the notion of a frieze pattern can…

Combinatorics · Mathematics 2022-05-10 Ilke Canakci , Anna Felikson , Ana Garcia Elsener , Pavel Tumarkin

The famous theorem of Conway and Coxeter on frieze patterns gave a geometric interpretation to integral friezes via triangulations of polygons. In this article, we review this result and show some of the development it has led to. The last…

Combinatorics · Mathematics 2021-01-15 Karin Baur

A frieze on a polygon is a map from the diagonals of the polygon to an integral domain which respects the Ptolemy relation. Conway and Coxeter previously studied positive friezes over $\mathbb{Z}$ and showed that they are in bijection with…

Combinatorics · Mathematics 2025-07-30 Esther Banaian , Libby Farrell , Amy Tao , Kayla Wright , Joy Zhichun Zhang

Finite frieze patterns with entries in $\mathbb{Z}[\lambda_{p_1},\ldots,\lambda_{p_s}]$ where $\{p_1,\ldots,p_s\} \subseteq \mathbb{Z}_{\geq 3}$ and $\lambda_p = 2 \cos(\pi/p)$ were shown to have a connection to dissected polygons by Holm…

Combinatorics · Mathematics 2021-06-15 Esther Banaian , Jiuqi Chen

We define the notion of infinite friezes of positive integers as a variation of Conway-Coxeter frieze patterns and study their properties. We introduce useful gluing and cutting operations on infinite friezes. It turns out that…

Combinatorics · Mathematics 2015-08-04 Manuela Tschabold

Coxeter defined the notion of frieze pattern, and Conway and Coxeter proved that triangulations of polygons are in bijection with integral frieze patterns. We show a $p$-angulated generalisation involving non-integral frieze patterns. We…

Combinatorics · Mathematics 2018-01-29 Thorsten Holm , Peter Jorgensen

We provide a characterization of infinite frieze patterns of positive integers via triangulations of an infinite strip in the plane. In the periodic case, these triangulations may be considered as triangulations of annuli. We also give a…

Combinatorics · Mathematics 2015-04-13 Karin Baur , Mark James Parsons , Manuela Tschabold

In this article, we construct SL$_k$-friezes using Pl\"ucker coordinates, making use of the cluster structure on the homogeneous coordinate ring of the Grassmannian of $k$-spaces in $n$-space via the Pl\"ucker embedding. When this cluster…

Rings and Algebras · Mathematics 2021-03-03 Karin Baur , Eleonore Faber , Sira Gratz , Khrystyna Serhiyenko , Gordana Todorov

We count numbers of tame frieze patterns with entries in a finite commutative local ring. For the ring $\mathbb{Z}/p^r\mathbb{Z}$, $p$ a prime and $r\in\mathbb{N}$ we obtain closed formulae for all heights. These may be interpreted as…

Combinatorics · Mathematics 2024-11-07 Bernhard Böhmler , Michael Cuntz

Conway and Coxeter have shown that frieze patterns over positive rational integers are in bijection with triangulations of polygons. An investigation of frieze patterns over other subsets of the complex numbers has recently been initiated…

Number Theory · Mathematics 2023-07-06 Michael Cuntz , Thorsten Holm , Carlo Pagano

Frieze patterns (in the sense of Conway and Coxeter) are related to cluster algebras of type A and to signed continuant polynomials. In view of studying certain classes of cluster algebras with coefficients, we extend the concept of signed…

Representation Theory · Mathematics 2014-04-02 Véronique Bazier-Matte , David Racicot-Desloges , Tanna Sanchez

The infinite friezes of positive integers were introduced by Tschabold as a variation of the classical Conway-Coxeter frieze patterns. These infinite friezes were further shown be to realizable via triangulations of the infinite strip by…

Combinatorics · Mathematics 2015-12-21 David Smith

Frieze patterns, as introduced by Coxeter in the 1970's, are closely related to cluster algebras without coefficients. A suitable generalization of frieze patterns, linked to cluster algebras with coefficients, has only briefly appeared in…

Combinatorics · Mathematics 2020-04-01 Michael Cuntz , Thorsten Holm , Peter Jorgensen

A frieze in the modern sense is a map from the set of objects of a triangulated category $\mathsf{C}$ to some ring. A frieze $X$ is characterised by the property that if $\tau x\rightarrow y\rightarrow x$ is an Auslander-Reiten triangle in…

Representation Theory · Mathematics 2016-10-04 David Pescod

Frieze patterns of numbers, introduced in the early 70's by Coxeter, are currently attracting much interest due to connections with the recent theory of cluster algebras. The present paper aims to review the original work of Coxeter and the…

Combinatorics · Mathematics 2017-05-17 Sophie Morier-Genoud

Frieze patterns are combinatorial objects that are deeply related to cluster theory. Determinants of frieze patterns arise from triangular regions of the frieze, and they have been considered in previous works by Broline-Crowe-Isaacs, and…

Combinatorics · Mathematics 2023-10-24 Juan Pablo Maldonado

Originally studied by Conway and Coxeter, friezes appeared in various recreational mathematics publications in the 1970s. More recently, in 2015, Baur, Parsons, and Tschabold constructed periodic infinite friezes and related them to…

Combinatorics · Mathematics 2019-06-19 Emily Gunawan , Gregg Musiker , Hannah Vogel

We provide a classification of positive integral friezes on marked bordered surfaces in the style of Conway and Coxeter. More precisely, we prove that positive integral friezes are in one-to-one correspondence with ideal triangulations…

Combinatorics · Mathematics 2025-09-29 Anna Felikson , Pavel Tumarkin
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