English

Free orbits for minimal actions on the circle

Dynamical Systems 2016-09-30 v1 Group Theory

Abstract

We prove that if Γ\Gamma is a countable group without a subgroup isomorphic to Z2\mathbb{Z}^2 that acts faithfully and minimally by orientation preserving homeomorphisms on the circle, then it has a free orbit. We give examples showing that this does not hold for actions by homeomorphisms of the line.

Keywords

Cite

@article{arxiv.1609.09452,
  title  = {Free orbits for minimal actions on the circle},
  author = {Joaquín Brum and Matilde Martínez and Rafael Potrie},
  journal= {arXiv preprint arXiv:1609.09452},
  year   = {2016}
}
R2 v1 2026-06-22T16:05:45.041Z