arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1303.7145math.GT
收藏

$S^2 \times S^1$的亏格为2的Goeritz群

The genus two Goeritz group of $S^2 \times S^1$

Sangbum Cho, Yuya Koda

摘要:

亏格-g Goeritz群是闭可定向3-流形的保向同胚的保向同胚类的群,它们保持流形的给定亏格-g Heegaard分裂。本文证明了$S^2 \times S^1$的亏格-2 Goeritz群的存在性,并给出了它的显式表示.

英文摘要:

The genus-g Goeritz group is the group of isotopy classes of orientation-preserving homeomorphisms of a closed orientable 3-manifold that preserve a given genus-g Heegaard splitting of the manifold. In this work, we show that the genus-2 Goeritz group of $S^2 \times S^1$ is finitely presented, and give its explicit presentation.

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。

↑