English

The Hyperbolic Plane in $\mathbb{E}^3$

Differential Geometry 2023-06-28 v2

Abstract

We build an explicit C1C^1 isometric embedding f:H2E3f_{\infty}:\mathbb{H}^2\to\mathbb{E}^3 of the hyperbolic plane whose image is relatively compact. Its limit set is a closed curve of Hausdorff dimension 1. Given an initial embedding f0f_0, our construction generates iteratively a sequence of maps by adding at each step kk a layer of NkN_{k} corrugations. To understand the behavior of dfdf_\infty we introduce a formalformal corrugationcorrugation processprocess leading to a formalformal analogueanalogue Φ:H2L(R2,R3)\Phi_{\infty}:\mathbb{H}^2\to \mathcal{L}(\mathbb{R}^2,\mathbb{R}^3). We show a self-similarity structure for Φ\Phi_{\infty}. We next prove that dfdf_\infty is close to Φ\Phi_{\infty} up to a precision that depends on the sequence N:=(Nk)kN_*:= (N_{k})_k. We then introduce the patternpattern mapsmaps νΦ\boldsymbol{\nu}_{\infty}^\Phi and ν\boldsymbol{\nu}_{\infty}, of respectively Φ\Phi_{\infty} and dfdf_\infty, that together with df0df_0 entirely describe the geometry of the Gauss maps associated to Φ\Phi_{\infty} and dfdf_\infty. For well chosen sequences of corrugation numbers, we finally show an asymptotic convergence of ν\boldsymbol{\nu}_{\infty} towards νΦ\boldsymbol{\nu}_{\infty}^\Phi over circles of rational radii.

Keywords

Cite

@article{arxiv.2303.12449,
  title  = {The Hyperbolic Plane in $\mathbb{E}^3$},
  author = {Vincent Borrelli and Roland Denis and Francis Lazarus and Mélanie Theillière and Boris Thibert},
  journal= {arXiv preprint arXiv:2303.12449},
  year   = {2023}
}

Comments

51 pages, 8 figures

R2 v1 2026-06-28T09:27:59.590Z