Mapping class groups of surfaces with noncompact boundary components

Mapping class groups of surfaces with noncompact boundary components
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映射具有非紧边界分量的曲面类组

DOI:
10.2140/agt.2023.23.2777
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发表时间:
2021
期刊:
Algebraic & Geometric Topology
影响因子:
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通讯作者:
Ryan Dickmann
Ryan Dickmann
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文献类型:
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作者:
Ryan Dickmann

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证明了一类具有非紧边界分支的无限型曲面的纯映射类群是一致完美的。然后,我们结合联合收割机这一结果与最近的工作,在其余的情况下,给出了一个完整的分类的完美和一致完美的纯映射类群的无限型曲面。我们还发展了一种将一般曲面切割成更简单曲面的方法,并将一些映射类群的结果推广到一般情况。
We show that the pure mapping class group is uniformly perfect for a certain class of infinite type surfaces with noncompact boundary components. We then combine this result with recent work in the remaining cases to give a complete classification of the perfect and uniformly perfect pure mapping class groups for infinite type surfaces. We also develop a method to cut a general surface into simpler surfaces and extend some mapping class group results to the general case.
大映射类组的大规模几何
DOI: 10.2140/gt.2023.27.2237
发表时间: 2023
影响因子: 2
作者:
Mann, Kathryn;Rafi, Kasra
通讯作者: Rafi, Kasra
DOI: 10.2140/agt.2018.18.4109
发表时间: 2018
影响因子: 0.7
作者:
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通讯作者: Vlamis, Nicholas