English

Spherical space forms revisited

Geometric Topology 2016-09-15 v3 Differential Geometry Group Theory

Abstract

We give a simplified proof of J. A. Wolf's classification of finite groups that can act freely and isometrically on a round sphere of some dimension. We slightly improve the classification by removing some non-obvious redundancy. The groups are the same as the Frobenius complements of finite group theory.

Keywords

Cite

@article{arxiv.1509.00906,
  title  = {Spherical space forms revisited},
  author = {Daniel Allcock},
  journal= {arXiv preprint arXiv:1509.00906},
  year   = {2016}
}

Comments

Fixed an error pointed out by a referee; section 3, starting with lemma 3.7, has been rewritten

R2 v1 2026-06-22T10:47:57.782Z