English

Presentations of NET maps

Dynamical Systems 2017-01-03 v1

Abstract

A branched covering f:S2S2f: S^2 \to S^2 is a nearly Euclidean Thurston (NET) map if each critical point is simple and its postcritical set has exactly four points. We show that up to equivalence, each NET map admits a normal form in terms of simple affine data. This data can then be used as input for algorithms developed for the computation of fundamental invariants, now systematically tabulated in a large census.

Keywords

Cite

@article{arxiv.1701.00443,
  title  = {Presentations of NET maps},
  author = {William Floyd and Walter Parry and Kevin M. Pilgrim},
  journal= {arXiv preprint arXiv:1701.00443},
  year   = {2017}
}
R2 v1 2026-06-22T17:39:19.769Z