2010/06/28 by Aditi Kar, Kar, Aditi, Graham A. Niblo +1
Mathematics · #43A07 #FOS: Mathematics #Group Theory (math.GR) #math.GR #msc:43A07
paper · pdf · doi:10.48550/arxiv.1006.5389
4 pages
arxiv created 2011/11/09 · arxiv updated 2011/11/10
We generalize a result of R. Thomas to establish the non-vanishing of the first l2-Betti number for a class of finitely generated groups.