The Sigma invariants for the Golden Mean Thompson group
Fuente:
arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866915332040425472 |
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| author | Molyneux, Lewis Nucinkis, Brita Rego, Yuri Santos |
| author_facet | Molyneux, Lewis Nucinkis, Brita Rego, Yuri Santos |
| contents | We use a method of Bieri, Geoghegan and Kochloukova to calculate the BNSR-invariants for the irrational slope Thompson's group $F_τ$. To do so we establish conditions under which the Sigma invariants coincide with those of a subgroup of finite index, addressing a problem posed by Strebel. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_12213 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The Sigma invariants for the Golden Mean Thompson group Molyneux, Lewis Nucinkis, Brita Rego, Yuri Santos Group Theory 20F65, 20F38, 57M07, 57S05 We use a method of Bieri, Geoghegan and Kochloukova to calculate the BNSR-invariants for the irrational slope Thompson's group $F_τ$. To do so we establish conditions under which the Sigma invariants coincide with those of a subgroup of finite index, addressing a problem posed by Strebel. |
| title | The Sigma invariants for the Golden Mean Thompson group |
| topic | Group Theory 20F65, 20F38, 57M07, 57S05 |
| url | https://arxiv.org/abs/2309.12213 |