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On a family of representations of the Higman–Thompson groups

  • André Guimarães and Paulo R. Pinto ORCID logo EMAIL logo
Published/Copyright: July 6, 2022

Abstract

We obtain an uncountable family of inequivalent and irreducible representations of the Higman–Thompson groups F n T n V n . This is accomplished by considering a family of representations of the Higman–Thompson groups V n that arise from representations of Cuntz algebras, each one acting on a Hilbert space built upon the orbit of a point x [ 0 , 1 ) under the dynamical system Φ ( x ) = n x ( mod 1 ) . Every such representation is retrieved through the action of V n on orb ( x ) , and their restrictions to the subgroups F n and T n of V n are studied using properties of the groups.

Award Identifier / Grant number: UIDB/04459/2020

Award Identifier / Grant number: UIDP/04459/2020

Funding statement: The first author would like to thank the Calouste Gulbenkian Foundation for funding this work. The second author was partially supported by FCT/Portugal through CAMGSD, IST-ID, projects UIDB/04459/2020 and UIDP/04459/2020.

  1. Communicated by: Adrian Ioana

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Received: 2021-11-18
Revised: 2022-03-07
Published Online: 2022-07-06
Published in Print: 2022-11-01

© 2022 Walter de Gruyter GmbH, Berlin/Boston

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