Ballmann, Werner; Matthiesen, Henrik; Mondal, Sugata On the analytic systole of Riemannian surfaces of finite type. (English) Zbl 1390.30052 Geom. Funct. Anal. 27, No. 5, 1070-1105 (2017). Reviewer: Dumitru Motreanu (Juiz de Fora) MSC: 30F99 58J50 35P15 53C99 PDFBibTeX XMLCite \textit{W. Ballmann} et al., Geom. Funct. Anal. 27, No. 5, 1070--1105 (2017; Zbl 1390.30052) Full Text: DOI arXiv
Ballmann, W.; Świątkowski, J. On \(L^2\)-cohomology and property (T) for automorphism groups of polyhedral cell complexes. (English) Zbl 0897.22007 Geom. Funct. Anal. 7, No. 4, 615-645 (1997). Reviewer: J.-P.Pier (Luxembourg) MSC: 22D10 22D05 05C99 PDFBibTeX XMLCite \textit{W. Ballmann} and \textit{J. Świątkowski}, Geom. Funct. Anal. 7, No. 4, 615--645 (1997; Zbl 0897.22007) Full Text: DOI