English

On minimal generating sets for the mapping class group of a punctured surface

Geometric Topology 2021-03-03 v1

Abstract

Let Σg,p\Sigma_{g,p} be a oriented connected surface of genus gg with pp punctures. We denote by Mg,p\mathcal{M}_{g,p} and Mg,p±\mathcal{M}_{g,p}^\pm the mapping class group and the extended mapping class group of Σg,p\Sigma_{g,p}, respectively. In this paper, we show that Mg,p\mathcal{M}_{g,p} and Mg,p±\mathcal{M}_{g,p}^\pm are generated by two element for g3g\geq 3 and p0p\geq 0.

Keywords

Cite

@article{arxiv.2103.01525,
  title  = {On minimal generating sets for the mapping class group of a punctured surface},
  author = {Naoyuki Monden},
  journal= {arXiv preprint arXiv:2103.01525},
  year   = {2021}
}

Comments

13 pages, 6 figures

R2 v1 2026-06-23T23:38:59.254Z