Generalized shear coordinates on the moduli spaces of three-dimensional spacetimes
Meusburger C, Uehara Scarinci CY (2016)
Publication Type: Journal article
Publication year: 2016
Journal
Publisher: International Press
Book Volume: 103
Pages Range: 425-474
Journal Issue: 3
URI: http://projecteuclid.org/euclid.jdg/1468517501
Abstract
We introduce coordinates on the moduli spaces of maximal globally hyperbolic constant curvature 3d spacetimes with cusped Cauchy surfaces S. They are derived from the parametrization of the moduli spaces by the bundle of measured geodesic laminations over Teichmüller space of S and can be viewed as analytic continuations of the shear coordinates on Teichmüller space. In terms of these coordinates, the gravitational symplectic structure takes a particularly simple form, which resembles the Weil–Petersson symplectic structure in shear coordinates, and is closely related to the cotangent bundle of Teichmüller space. We then consider the mapping class group action on the moduli spaces and show that it preserves the gravitational symplectic structure. This defines three distinct mapping class group actions on the cotangent bundle of Teichmüller space, corresponding to different values of the curvature.
Authors with CRIS profile
How to cite
APA:
Meusburger, C., & Uehara Scarinci, C.Y. (2016). Generalized shear coordinates on the moduli spaces of three-dimensional spacetimes. Journal of Differential Geometry, 103(3), 425-474.
MLA:
Meusburger, Cathérine, and Carlos Yoshio Uehara Scarinci. "Generalized shear coordinates on the moduli spaces of three-dimensional spacetimes." Journal of Differential Geometry 103.3 (2016): 425-474.
BibTeX: Download
