Asymptotic mapping class groups of Cantor manifolds and their finiteness properties

被引:0
|
作者
Aramayona, Javier [1 ]
Bux, Kai-Uwe [2 ]
Flechsig, Jonas [2 ]
Petrosyan, Nansen [3 ]
Wu, Xiaolei [4 ]
Randal-Williams, Oscar [5 ]
机构
[1] Inst Ciencias Matemat ICMAT, Nicolas Cabrera 13-15, Madrid 28049, Spain
[2] Univ Bielefeld, Fak Math, Univ Str 25, D-33501 Bielefeld, Germany
[3] Univ Southampton, Sch Math Sci, Univ Rd, Southampton SO17 1BJ, England
[4] Fudan Univ, Shanghai Ctr Math Sci, Jiangwan Campus,2005 Songhu Rd, Shanghai 200438, Peoples R China
[5] Univ Cambridge, Ctr Math Sci, Wilberforce Rd, Cambridge CB3 0WB, England
关键词
asymptotic mapping class group; Cantor manifold; Thompson group; stable homology; HOMOLOGY STABILITY; AUTOMORPHISMS; DIFFEOMORPHISM; STABILIZATION; THOMPSONS; SUBGROUPS; SURGERY;
D O I
10.4171/RMI/1502
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We prove that the infinite family of asymptotic mapping class groups of surfaces defined by Funar-Kapoudjian and Aramayona-Funar are of type F1, thus answering a problem of Funar-Kapoudjian-Sergiescu and a question of Aramayona- Funar. This result is a specific case of a more general theorem which allows us to deduce that asymptotic mapping class groups of certain Cantor manifolds, also introduced in this paper, are of type F1. As important examples, we obtain type F1 asymptotic mapping class groups that contain, respectively, the mapping class group of every compact surface with non-empty boundary, the automorphism group of every free group of finite rank, or infinite families of arithmetic groups. In addition, for certain types of manifolds, the homology of our asymptotic mapping class groups coincides with the stable homology of the relevant mapping class groups, as studied by Harer and Hatcher-Wahl.
引用
收藏
页码:2003 / 2072
页数:70
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