The converse of the Schwarz Lemma is false
Complex Variables
2019-10-08 v3 Geometric Topology
Abstract
Let be a homeomorphism between hyperbolic surfaces with finite topology. If is homotopic to a holomorphic map, then every closed geodesic in is at least as long as the corresponding geodesic in , by the Schwarz Lemma. The converse holds trivially when and are disks or annuli, and it holds when and are closed surfaces by a theorem of W. Thurston. We prove that the converse is false in all other cases, strengthening a result of Masumoto.
Keywords
Cite
@article{arxiv.1411.5913,
title = {The converse of the Schwarz Lemma is false},
author = {Maxime Fortier Bourque},
journal= {arXiv preprint arXiv:1411.5913},
year = {2019}
}
Comments
8 pages, 2 figures