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arXiv 2103.01525math.GT
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关于穿孔曲面的映射类群的极小生成集

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

Naoyuki Monden

摘要:

设$Σ_{g,p}$是亏格为$g$的有向连通曲面,其中有$p$穿刺.我们用$\mathcal{M}_{g,p}$和$\mathcal{M}_{g,p}^\pm$分别表示$Σ_{g,p}$的映射类群和扩展的映射类群。本文证明了$\mathcal{M}_{g,p}$和$\mathcal{M}_{g,p}^\pm$是由$g\geq 3$和$p\geq 0$的两个元素生成的。

英文摘要:

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

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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