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math.GR2012★ 1 cited
Weak notions of normality and vanishing up to rank in L2-cohomology
Uri Bader, Alex Furman, Roman Sauer
We study vanishing results for L2-cohomology of countable groups under the presence of subgroups that satisfy some weak normality condition. As a consequence we show that the L2-Be…
math.DS2012★ 3 cited
Rigidity of group actions on homogeneous spaces, III
Uri Bader, Alex Furman, Alex Gorodnik +1
Consider homogeneous G/H and G/F, for an S-algebraic group G. A lattice Γ acts on the left strictly conservatively. The following rigidity results are obtained: morphisms, factors…