paper

Analytic torsion and R-torsion of Witt representations on manifolds with cusps

arXiv:1411.1105 · doi:10.1215/00127094-2018-0009

Abstract

We establish a Cheeger-Muller theorem for unimodular representations satisfying a Witt condition on a noncompact manifold with cusps. This class of spaces includes all non-compact hyperbolic spaces of finite volume, but we do not assume that the metric has constant curvature nor that the link of the cusp is a torus. We use renormalized traces in the sense of Melrose to define the analytic torsion and we relate it to the intersection R-torsion of Dar of the natural compactification to a stratified space. Our proof relies on our recent work on the behavior of the Hodge Laplacian spectrum on a closed manifold undergoing degeneration to a manifold with fibered cusps.

50 pages, 1 figure. v3: corrected typos and made changes to match with the new version of arXiv:1410.8406

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