Abstract
We generalise a result of R. Thomas to establish the non-vanishing of the first $\ell^2$ Betti number for a class of finitely generated groups.
Citation
Aditi Kar. Graham A. Niblo. "Some non-amenable groups." Publ. Mat. 56 (1) 255 - 259, 2012.
Information
Published: 2012
First available in Project Euclid: 15 December 2011
zbMATH: 1264.20032
MathSciNet: MR2918190
Subjects:
Primary:
20J06
Keywords:
Cohomology
,
Euler characteristic
,
finitely generated groups
,
orbifolds
Rights: Copyright © 2012 Universitat Autònoma de Barcelona, Departament de Matemàtiques
