Commensurators of abelian subgroups in CAT(0) groups
Commensurators of abelian subgroups in CAT(0) groups
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CAT(0)群中阿贝尔子群的公度子
DOI:
10.1007/s00209-019-02449-9
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发表时间:
2019
影响因子:
0.8
通讯作者:
Huang J
中科院分区:
文献类型:
--
作者:
Huang J
We study the structure of the commensurator of a virtually abelian subgroupHinG, whereGacts properly on aspaceX. WhenXis a Hadamard manifold andHis semisimple, we show that the commensurator ofHcoincides with the normalizer of a finite index subgroup ofH. WhenXis acube complex or a thick Euclidean building and the action ofGis cellular, we show that the commensurator ofHis an ascending union of normalizers of finite index subgroups ofH. We explore several special cases where the results can be strengthened and we discuss a few examples showing the necessity of various assumptions. Finally, we present some applications to the constructions of classifying spaces with virtually abelian stabilizers.
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DOI:
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发表时间:
2012
期刊:
影响因子:
--
作者:
D. Degrijse;N. Petrosyan
通讯作者:
N. Petrosyan
DOI:
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发表时间:
2003
期刊:
影响因子:
--
作者:
W. Lueck
通讯作者:
W. Lueck
影响因子:
0.5
作者:
K. Ruane
通讯作者:
K. Ruane
DOI:
10.1007/bf02698640
发表时间:
1995
期刊:
Publications Mathématiques de l'Institut des Hautes Études Scientifiques
影响因子:
--
作者:
W. Ballmann;M. Brin
通讯作者:
M. Brin
影响因子:
0.8
作者:
Tomasz Prytuła
通讯作者:
Tomasz Prytuła