Asymptotic invariants of lattices in locally compact groups

Asymptotic invariants of lattices in locally compact groups
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局部紧群中格的渐近不变量

DOI:
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发表时间:
2018
期刊:
Comptes rendus. Mathematique
影响因子:
--
通讯作者:
A. Carderi
A. Carderi
中科院分区:
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文献类型:
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作者:
A. Carderi

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这项工作的目的是了解固定局部紧群中晶格序列的一些渐近性质。特别是,我们将研究由余体积和秩梯度重整的格的贝蒂数的渐近增长,也由余体积重整的生成元的最小数量。为此,我们将考虑陪集空间上局部紧群的作用序列的超积,并且我们将展示其横截面之一的性质如何与格的渐近性质相关。
The aim of this work is to understand some of the asymptotic properties of sequences of lattices in a fixed locally compact group. In particular we will study the asymptotic growth of the Betti numbers of the lattices renormalized by the covolume and the rank gradient, the minimal number of generators also renormalized by the covolume. For doing so we will consider the ultraproduct of the sequence of actions of the locally compact group on the coset spaces and we will show how the properties of one of its cross sections are related to the asymptotic properties of the lattices.
DOI: 10.4171/jems/344
发表时间: 2007-01
期刊: arXiv: Group Theory
影响因子: --
作者:
Miklós Abért;N. Nikolov
通讯作者: Miklós Abért;N. Nikolov
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DOI: 10.1215/00127094-2017-0020
发表时间: 2017
影响因子: 2.5
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