28 citations · 49 across the 17 of their papers we have counts for
Showing math.ATShow all
2 papers · 1 filter
math.AT2015
Approximating Novikov-Shubin numbers of virtually cyclic coverings
Holger Kammeyer
We assign real numbers to finite sheeted coverings of compact CW complexes designed as finite counterparts to the Novikov-Shubin numbers. We prove an approximation theorem in the c…
math.AT2013★ 2 cited
L2-invariants of nonuniform lattices in semisimple Lie groups
Holger Kammeyer
We compute L2-invariants of certain nonuniform lattices in semisimple Lie groups by means of the Borel-Serre compactification of arithmetically defined locally symmetric spaces. Th…