English

Maximal dilatation on nonorientable surfaces

Dynamical Systems 2025-08-13 v1 Geometric Topology

Abstract

On each nonorientable surface of even genus g4g \geq 4, we show that the Liechti-Strenner's polynomial in~\cite{LiechtiStrenner18} gives a maximal dilatation among pseudo-Anosov diffeomorphisms with an orientable invariant foliation. This is proved by showing that this polynomial is irreducible.

Cite

@article{arxiv.2508.08323,
  title  = {Maximal dilatation on nonorientable surfaces},
  author = {Ji-Young Ham and Joongul Lee},
  journal= {arXiv preprint arXiv:2508.08323},
  year   = {2025}
}

Comments

9 pages, 3figures

R2 v1 2026-07-01T04:44:56.078Z