Simultaneous universal circles and continuous extension
Geometric Topology
2026-07-06 v1 Dynamical Systems
Abstract
Fenley proved that any foliation almost transverse to a quasigeodesic pseudo-Anosov flow in a closed atoroidal 3-manifold has the continuous extension property, meaning the inclusions of leaves into the universal cover continuously extend to their ideal boundaries. This article gives an alternate proof of an upgraded version of this: the associated Cannon-Thurston map for the flow, constructed by Frankel and Fenley, organizes all of the leafwise continuous extensions. The proof uses the fact that the boundary of the flowspace is naturally a universal circle for the foliation.
Cite
@article{arxiv.2607.05703,
title = {Simultaneous universal circles and continuous extension},
author = {Sérgio R. Fenley and Michael P. Landry and Samuel J. Taylor},
journal= {arXiv preprint arXiv:2607.05703},
year = {2026}
}
Comments
7 pages