Abstract
In this note, we show that the sets of all stable commutator lengths in the braided Ptolemy-Thompson groups are equal to non-negative rational numbers.
Citation
Shuhei Maruyama. "A note on stable commutator length in braided Ptolemy-Thompson groups." Kodai Math. J. 44 (2) 317 - 322, June 2021. https://doi.org/10.2996/kmj44206
Information
Received: 29 October 2020; Revised: 16 December 2020; Published: June 2021
First available in Project Euclid: 29 June 2021
MathSciNet: MR4280140
zbMATH: 07394773
Digital Object Identifier: 10.2996/kmj44206
Subjects:
Primary:
20F65
Secondary:
20F12
Keywords:
quasi-morphism
,
stable commutator length
,
Thompson group
Rights: Copyright © 2021 Tokyo Institute of Technology, Department of Mathematics
