Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists

We give a method to compute presentations of saturated cluster modular groups. Using this, we obtain finite presentations of the saturated cluster modular groups of finite mutation type X₆ and X₇. We verify that the cluster modular groups of finite mutation type Ẽ₆, Ẽ₇, Ẽ₈, G⁽*'*⁾₂, X₆ and X₇ a...

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Veröffentlicht in:Symmetry, Integrability and Geometry: Methods and Applications
Datum:2020
1. Verfasser: Ishibashi, Tsukasa
Format: Artikel
Sprache:Englisch
Veröffentlicht: Інститут математики НАН України 2020
Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/210585
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Zitieren:Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists. Tsukasa Ishibashi. SIGMA 16 (2020), 025, 22 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Ishibashi, Tsukasa
author_facet Ishibashi, Tsukasa
citation_txt Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists. Tsukasa Ishibashi. SIGMA 16 (2020), 025, 22 pages
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description We give a method to compute presentations of saturated cluster modular groups. Using this, we obtain finite presentations of the saturated cluster modular groups of finite mutation type X₆ and X₇. We verify that the cluster modular groups of finite mutation type Ẽ₆, Ẽ₇, Ẽ₈, G⁽*'*⁾₂, X₆ and X₇ are virtually generated by cluster Dehn twists.
first_indexed 2025-12-17T12:04:17Z
format Article
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institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
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language English
last_indexed 2025-12-17T12:04:17Z
publishDate 2020
publisher Інститут математики НАН України
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spelling Ishibashi, Tsukasa
2025-12-12T10:30:46Z
2020
Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists. Tsukasa Ishibashi. SIGMA 16 (2020), 025, 22 pages
1815-0659
2020 Mathematics Subject Classification: 13F60; 05E15; 30F60
arXiv:1711.07785
https://nasplib.isofts.kiev.ua/handle/123456789/210585
https://doi.org/10.3842/SIGMA.2020.025
We give a method to compute presentations of saturated cluster modular groups. Using this, we obtain finite presentations of the saturated cluster modular groups of finite mutation type X₆ and X₇. We verify that the cluster modular groups of finite mutation type Ẽ₆, Ẽ₇, Ẽ₈, G⁽*'*⁾₂, X₆ and X₇ are virtually generated by cluster Dehn twists.
The author would like to express his gratitude to his supervisor, Nariya Kawazumi, for continuous encouragement during this work. He is very grateful to Travis Scrimshaw for pointing out an error in the presentation of Гₓ₆ in the first version of this paper. Most of the computations in this paper are done by using the Java applet for quiver mutations provided by Bernhard Keller, which is available at http://www.math.lsa.umich.edu/~fomin/cluster.html. This work is partially supported by JSPS KAKENHI Grant Number 18J13304 and the program for Leading Graduate School, MEXT, Japan.
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Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists
Article
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spellingShingle Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists
Ishibashi, Tsukasa
title Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists
title_full Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists
title_fullStr Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists
title_full_unstemmed Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists
title_short Presentations of Cluster Modular Groups and Generation by Cluster Dehn Twists
title_sort presentations of cluster modular groups and generation by cluster dehn twists
url https://nasplib.isofts.kiev.ua/handle/123456789/210585
work_keys_str_mv AT ishibashitsukasa presentationsofclustermodulargroupsandgenerationbyclusterdehntwists