Random groups do not split

Random groups do not split
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随机组不分裂

DOI:
10.1007/s00208-010-0532-4
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发表时间:
2011
影响因子:
1.4
通讯作者:
P. Przytycki
P. Przytycki
中科院分区:
数学2区
文献类型:
--
作者:
F. Dahmani;Vincent Guirardel;P. Przytycki

文献摘要

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我们证明了Gromov密度模型中的随机群在任何密度下都满足性质(FA),即它们不作用于简单树上。这意味着它们在密度小于$${\frac{1}{2}}$$时定义的Gromov边界是门格尔曲线。
We prove that random groups in the Gromov density model, at any density, satisfy property (FA), i.e. they do not act non-trivially on simplicial trees. This implies that their Gromov boundaries, defined at density less than $${\frac{1}{2}}$$ , are Menger curves.