- journal article metadata
European Mathematical Society Publishing House
2017-12-10 23:40:01
Groups, Geometry, and Dynamics
Groups Geom. Dyn.
GGD
1661-7207
1661-7215
Group theory and generalizations
10.4171/GGD
http://www.ems-ph.org/doi/10.4171/GGD
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European Mathematical Society Publishing House
Zuerich, Switzerland
© European Mathematical Society
11
2017
4
Approximating Novikov–Shubin numbers of virtually cyclic coverings
Holger
Kammeyer
Karlsruhe Institute of Technology, Germany
L2-invariants, Novikov–Shubin, approximation
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 case of virtually cyclic fundamental groups employing methods from Diophantine approximation.
Global analysis, analysis on manifolds
Partial differential equations
Algebraic topology
1231
1251
10.4171/GGD/427
http://www.ems-ph.org/doi/10.4171/GGD/427
12
7
2017