English

Analytic sphere eversion using ruled surfaces

Geometric Topology 2019-02-18 v2 Mathematical Physics Algebraic Geometry Algebraic Topology math.MP

Abstract

Sphere eversions have been described so far by either pictures with minimal topological complexity, numerical evolution or complex equations. We write down relatively simple explicit formulas for the whole eversion, both analytic and topologically simpler, including also Boy surface (real projective plane), using a family of ruled surfaces. We show their usefulness in visualizing the process using commonly available modeling software.

Keywords

Cite

@article{arxiv.1711.10466,
  title  = {Analytic sphere eversion using ruled surfaces},
  author = {Adam Bednorz and Witold Bednorz},
  journal= {arXiv preprint arXiv:1711.10466},
  year   = {2019}
}

Comments

25 pages, 16 figures, more information at http://www.fuw.edu.pl/~abednorz/eversion/

R2 v1 2026-06-22T22:59:49.752Z