Integral approximation of simplicial volume of graph manifolds

Integral approximation of simplicial volume of graph manifolds
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图流形单纯体积的积分近似

DOI:
10.1112/blms.12266
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发表时间:
2018
影响因子:
0.9
通讯作者:
C. Loeh
C. Loeh
中科院分区:
数学3区
文献类型:
--
作者:
Daniel Fauser;Stefan Friedl;C. Loeh

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图流形是将沿着环面分解为具有驯服S1-结构的片段的流形。本文证明了图流形的单纯体积(已知为零)可以用其有限覆盖的积分单纯体积来近似。给出了图流形的秩梯度、Betti数梯度和挠同调梯度为零的统一证明。
Graph manifolds are manifolds that decompose along tori into pieces with a tame S1 ‐structure. In this paper, we prove that the simplicial volume of graph manifolds (which is known to be zero) can be approximated by integral simplicial volumes of their finite coverings. This gives a uniform proof of the vanishing of rank gradients, Betti number gradients and torsion homology gradients for graph manifolds.
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
有限覆盖和双曲体积中同调挠率的增长
DOI: 10.5802/aif.3173
发表时间: 2018
期刊: Annales de l’institut Fourier
影响因子: --
作者:
Lê, Thang
通讯作者: Lê, Thang