English

CMC-surfaces, flat structures and umbilical points

Differential Geometry 2009-01-23 v1

Abstract

A short proof of the Caratheodory conjecture about index of an isolated umbilic on the convex 2-dimensional sphere is suggested. The argument is based on the study of geodesic lines near cone-type singularity of a metric induced by holomorphic quadratic differentials.

Keywords

Cite

@article{arxiv.math/0104081,
  title  = {CMC-surfaces, flat structures and umbilical points},
  author = {Igor Nikolaev},
  journal= {arXiv preprint arXiv:math/0104081},
  year   = {2009}
}