English

A finite generating set for the level 2 mapping class group of a nonorientable surface

Geometric Topology 2017-02-09 v1

Abstract

We obtain a finite set of generators for the level 2 mapping class group of a closed nonorientable surface of genus g3g\ge 3. This set consists of isotopy classes of Lickorish's Y-homeomorphisms also called crosscap slides.

Keywords

Cite

@article{arxiv.1108.3927,
  title  = {A finite generating set for the level 2 mapping class group of a nonorientable surface},
  author = {Blazej Szepietowski},
  journal= {arXiv preprint arXiv:1108.3927},
  year   = {2017}
}

Comments

13 pages, 3 figures