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arXiv · 1509.01142

Approximating Novikov-Shubin numbers of virtually cyclic coverings

Holger Kammeyer
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Abstract

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.

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Holger Kammeyer. 2015-09-03. Approximating Novikov-Shubin numbers of virtually cyclic coverings. https://arxiv.org/abs/1509.01142

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