English

Triunduloids: Embedded constant mean curvature surfaces with three ends and genus zero

Differential Geometry 2007-05-23 v2

Abstract

In 1841, Delaunay constructed the embedded surfaces of revolution with constant mean curvature (CMC); these unduloids have genus zero and are now known to be the only embedded CMC surfaces with two ends and finite genus. Here, we construct the complete family of embedded CMC surfaces with three ends and genus zero; they are classified using their asymptotic necksizes. We work in a class slightly more general than embedded surfaces, namely immersed surfaces which bound an immersed three-manifold, as introduced by Alexandrov.

Keywords

Cite

@article{arxiv.math/0102183,
  title  = {Triunduloids: Embedded constant mean curvature surfaces with three ends and genus zero},
  author = {Karsten Grosse-Brauckmann and Robert B Kusner and John M Sullivan},
  journal= {arXiv preprint arXiv:math/0102183},
  year   = {2007}
}

Comments

LaTeX, 22 pages, 2 figures (8 ps files); full version of our announcement math.DG/9903101; final version (minor revisions) to appear in Crelle's J. reine angew. Math

R2 v1 2026-07-22T16:37:27.318Z