Snake Graphs and Caldero-Chapoton Functions from Triangulated Orbifolds

Fuente: arXiv
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Autori principali: Banaian, Esther, Valdivieso, Yadira
Natura: Preprint
Pubblicazione: 2023
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author Banaian, Esther
Valdivieso, Yadira
author_facet Banaian, Esther
Valdivieso, Yadira
contents Generalized cluster algebras from orbifolds were defined by Chekhov and Shapiro to give a combinatorial description of their Teichmüller spaces. One can also assign a gentle algebra to a triangulated orbifold, as in the work of Labardini-Fragoso and Mou. In this work, we show that the Caldero-Chapoton map and the snake graph expansion map agree for arcs in triangulated orbifolds and arc modules, and similarly for closed curves and certain band modules. As a consequence, we have a bijection between some indecomposable modules over a gentle algebra and cluster variables in a generalized cluster algebra where both algebras arise from the same triangulated orbifold.
format Preprint
id arxiv_https___arxiv_org_abs_2310_16925
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Snake Graphs and Caldero-Chapoton Functions from Triangulated Orbifolds
Banaian, Esther
Valdivieso, Yadira
Representation Theory
Combinatorics
13F60 05E10 05E16
Generalized cluster algebras from orbifolds were defined by Chekhov and Shapiro to give a combinatorial description of their Teichmüller spaces. One can also assign a gentle algebra to a triangulated orbifold, as in the work of Labardini-Fragoso and Mou. In this work, we show that the Caldero-Chapoton map and the snake graph expansion map agree for arcs in triangulated orbifolds and arc modules, and similarly for closed curves and certain band modules. As a consequence, we have a bijection between some indecomposable modules over a gentle algebra and cluster variables in a generalized cluster algebra where both algebras arise from the same triangulated orbifold.
title Snake Graphs and Caldero-Chapoton Functions from Triangulated Orbifolds
topic Representation Theory
Combinatorics
13F60 05E10 05E16
url https://arxiv.org/abs/2310.16925