English

How highly connected can an orbifold be?

Differential Geometry 2021-12-30 v1

Abstract

On the one hand, we provide the first examples of arbitrarily highly connected (compact) bad orbifolds. On the other hand, we show that n-connected n-orbifolds are manifolds. The latter improves the best previously known bound of Lytchak by roughly a factor of 2. For compact orbifolds and in most dimensions we prove slightly better bounds. We obtain sharp results up to dimension 5.

Keywords

Cite

@article{arxiv.2112.14634,
  title  = {How highly connected can an orbifold be?},
  author = {Christian Lange and Marco Radeschi},
  journal= {arXiv preprint arXiv:2112.14634},
  year   = {2021}
}
R2 v1 2026-06-24T08:34:52.054Z