The renormalization of volume and Chern-Simons invariant for hyperbolic 3-manifolds

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1. Verfasser: Lee, Dongha
Format: Preprint
Veröffentlicht: 2023
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_version_ 1866912445229957120
author Lee, Dongha
author_facet Lee, Dongha
contents We renormalize the Chern-Simons invariant for convex-cocompact hyperbolic 3-manifolds by finding the asymptotics along an equidistance foliation. We prove that the metric Chern-Simons invariant has an exponentially divergent term given by the integral of the torsion 2-form with respect to a Weitzenböck connection. This produces the asymptotics of hyperbolic volume plus the metric Chern-Simons invariant, which is often called complex volume. The leading coefficient of the asymptotics introduces a complex-valued quantity consisting of mean curvature and torsion 2-form, which is defined on smooth surfaces embedded in a Riemann-Cartan 3-manifold.
format Preprint
id arxiv_https___arxiv_org_abs_2310_04776
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle The renormalization of volume and Chern-Simons invariant for hyperbolic 3-manifolds
Lee, Dongha
Differential Geometry
58J28, 57K32
We renormalize the Chern-Simons invariant for convex-cocompact hyperbolic 3-manifolds by finding the asymptotics along an equidistance foliation. We prove that the metric Chern-Simons invariant has an exponentially divergent term given by the integral of the torsion 2-form with respect to a Weitzenböck connection. This produces the asymptotics of hyperbolic volume plus the metric Chern-Simons invariant, which is often called complex volume. The leading coefficient of the asymptotics introduces a complex-valued quantity consisting of mean curvature and torsion 2-form, which is defined on smooth surfaces embedded in a Riemann-Cartan 3-manifold.
title The renormalization of volume and Chern-Simons invariant for hyperbolic 3-manifolds
topic Differential Geometry
58J28, 57K32
url https://arxiv.org/abs/2310.04776