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20032026
most citedDegree theorems and Lipschitz simplicial volume for non-positively curved manifolds of finite volume

37 citations · 177 across the 30 of their papers we have counts for

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Showing 2007 · math.DSShow all

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math.DS2007★ 23 cited

A spectral sequence to compute L2-Betti numbers of groups and groupoids

Roman Sauer, Andreas Thom

We construct a spectral sequence for L2-type cohomology groups of discrete measured groupoids. Based on the spectral sequence, we prove the Hopf-Singer conjecture for aspherical ma…