Reconstructing flows from the orbit space
arXiv:2509.01594
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.
29 pages, 12 figures. Comments welcome. v2: an unnecessary assumption in theorem 1.13 was removed, thanks to colleagues comments