English

Reconstructing flows from the orbit space

Dynamical Systems 2025-09-12 v2 Geometric Topology

Abstract

We give some simple conditions under which a group acting on a bifoliated plane comes from the induced action of a pseudo-Anosov flow on its orbit space. An application of the strategy is a less technical proof of a result of Barbot that the induced action of an Anosov flow on its orbit space uniquely determines the flow up to orbit equivalence. In another application, we recover an expansive flow on a 3-manifold from the action of a group on a \emph{loom space} as defined by Schleimer and Segerman.

Keywords

Cite

@article{arxiv.2509.01594,
  title  = {Reconstructing flows from the orbit space},
  author = {Thomas Barthelmé and Sergio Fenley and Kathryn Mann},
  journal= {arXiv preprint arXiv:2509.01594},
  year   = {2025}
}

Comments

29 pages, 12 figures. Comments welcome. v2: an unnecessary assumption in theorem 1.13 was removed, thanks to colleagues comments

R2 v1 2026-07-01T05:15:46.164Z