Mathematics – Group Theory
Scientific paper
2012-04-16
Mathematics
Group Theory
28 pages
Scientific paper
By studying commensurators of virtually cyclic groups, we prove that every elementary amenable group of finite Hirsch length h and cardinality aleph-n admits a finite dimensional classifying space with virtually cyclic stabilizers of dimension n+h+2. We also provide a criterion for groups that fit into an extension with torsion-free quotient to admit a finite dimensional classifying space with virtually cyclic stabilizers.
Degrijse Dieter
Petrosyan Nansen
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