Thompson's groups and Teichmüller modular groups of generalized Cantor sets
Fuente:
arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866917479876395008 |
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| author | Shiga, Hiroshige |
| author_facet | Shiga, Hiroshige |
| contents | Thompson's groups, which are denoted by $F, T$ and $V$, were introduced by R. Thompson. It is known that they are related to various fields in mathematics. In this paper, we establish that Thompson's groups are regarded as subgroups of Teichmüller modular groups of Teichmüller spaces of generalized Cantor sets. Moreover, Thompson's groups $F$ and $T$ act properly discontinuously on such Teichmüller spaces but Thompson's group $V$ does not. In some sense, those results are improvements of the results by E. de Faria, F. P. Gardiner and W. J. Harvey on Thomnpson's group $F$ and asymptotic Teichmüller spaces.
We also show that Thompson's groups act infinitely many Teichmüller spaces of generalized Cantor sets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_10143 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Thompson's groups and Teichmüller modular groups of generalized Cantor sets Shiga, Hiroshige Complex Variables Primary 30F60, Secondary 30C62, 20F65 Thompson's groups, which are denoted by $F, T$ and $V$, were introduced by R. Thompson. It is known that they are related to various fields in mathematics. In this paper, we establish that Thompson's groups are regarded as subgroups of Teichmüller modular groups of Teichmüller spaces of generalized Cantor sets. Moreover, Thompson's groups $F$ and $T$ act properly discontinuously on such Teichmüller spaces but Thompson's group $V$ does not. In some sense, those results are improvements of the results by E. de Faria, F. P. Gardiner and W. J. Harvey on Thomnpson's group $F$ and asymptotic Teichmüller spaces. We also show that Thompson's groups act infinitely many Teichmüller spaces of generalized Cantor sets. |
| title | Thompson's groups and Teichmüller modular groups of generalized Cantor sets |
| topic | Complex Variables Primary 30F60, Secondary 30C62, 20F65 |
| url | https://arxiv.org/abs/2605.10143 |