Published online by Cambridge University Press: 14 July 2016
Suppose an amenable group G is acting freely on a simply connected simplicial complex
$\~{X}$
with compact quotient X. Fix n ≥ 1, assume
$H_n(\~{X}, \mathbb{Z}) = 0$
and let (Hi
) be a Farber chain in G. We prove that the torsion of the integral homology in dimension n of
$\~{X}/H_i$
grows subexponentially in [G : Hi
]. This fails if X is not compact. We provide the first examples of amenable groups for which torsion in homology grows faster than any given function. These examples include some solvable groups of derived length 3 which is the minimal possible.
Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.
* Views captured on Cambridge Core between September 2016 - 21st January 2021. This data will be updated every 24 hours.