English

Empire Maps on Surfaces

Geometric Topology 2011-06-22 v1

Abstract

This report is an introduction to mathematical map colouring and the problems posed by Heawood in his paper of 1890. There will be a brief discussion of the Map Colour Theorem; then we will move towards investigating empire maps in the plane and the recent contributions by Wessel. Finally we will conclude with a discussion of all known results for empire maps on higher genus surfaces and prove Heawoods Empire Conjecture in a previously unknown case.

Cite

@article{arxiv.1106.4235,
  title  = {Empire Maps on Surfaces},
  author = {Caspar de Haes},
  journal= {arXiv preprint arXiv:1106.4235},
  year   = {2011}
}

Comments

66 pages, 41 figures

R2 v1 2026-06-21T18:25:33.439Z