English

Three-dimensional orbifolds by 2-groups

High Energy Physics - Theory 2023-08-23 v2

Abstract

In this paper we generalize previous work on decomposition in three-dimensional orbifolds by 2-groups realized as analogues of central extensions, to orbifolds by more general 2-groups. We describe the computation of such orbifolds in physics, state a version of the decomposition conjecture, and then compute in numerous examples, checking that decomposition works as advertised.

Keywords

Cite

@article{arxiv.2303.16220,
  title  = {Three-dimensional orbifolds by 2-groups},
  author = {Alonso Perez-Lona and Eric Sharpe},
  journal= {arXiv preprint arXiv:2303.16220},
  year   = {2023}
}

Comments

37 pages, LaTeX; v2: typos fixed, pictures added, new example added

R2 v1 2026-06-28T09:38:35.876Z