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- W4387323842 abstract "Let M be an oriented three-dimensional Riemannian manifold of constant sectional curvature k = 0,1,-1 and let SO(M) be its direct orthonormal frame bundle (direct refers to positive orientation), which may be thought of as the set of all positions of a small body in M. Given lambda in R, there is a three-dimensional distribution D^lambda on SO(M) accounting for infinitesimal rototranslations of constant pitch lambda. When lambda is different from k^2, there is a canonical sub-Riemannian structure on D^lambda. We present a geometric characterization of its geodesics, using a previous Lie theoretical description. For k = 0,-1, we compute the sub-Riemannian length spectrum of (SO(M),D^lambda) in terms of the complex length spectrum of M (given by the lengths and the holonomies of the periodic geodesics) when M has positive injectivity radius. In particular, for two complex length isospectral closed hyperbolic 3-manifolds (even if they are not isometric), the associated sub-Riemannian metrics on their direct orthonormal bundles are length isospectral." @default.
- W4387323842 created "2023-10-04" @default.
- W4387323842 creator A5011944385 @default.
- W4387323842 date "2023-10-01" @default.
- W4387323842 modified "2023-10-14" @default.
- W4387323842 title "The sub-Riemannian length spectrum for screw motions of constant pitch on flat and hyperbolic 3-manifolds" @default.
- W4387323842 doi "https://doi.org/10.48550/arxiv.2310.00759" @default.
- W4387323842 hasPublicationYear "2023" @default.
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