Permutation-based presentations for Brin's higher-dimensional Thompson groups nV

Martyn Quick*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

The higher-dimensional Thompson groups nV , for n⩾2 , were introduced by Brin [‘Presentations of higher dimensional Thompson groups’, J. Algebra284 (2005), 520–558]. We provide new presentations for each of these infinite simple groups. The first is an infinite presentation, analogous to the Coxeter presentation for the finite symmetric group, with generating set equal to the set of transpositions in nV and reflecting the self-similar structure of n-dimensional Cantor space. We then exploit this infinite presentation to produce further finite presentations that are considerably smaller than those previously known.
Original languageEnglish
Pages (from-to)39-67
Number of pages29
JournalJournal of the Australian Mathematical Society
Volume116
Issue number1
Early online date15 Nov 2022
DOIs
Publication statusPublished - 1 Feb 2024

Keywords

  • Presentations
  • Thompson's groups
  • Higher-dimensional Thompson's group
  • Simple groups
  • Generators and relations
  • Permutations
  • Transpositions
  • Baker's map
  • Cantor space

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