Isometries of complimented subRiemannian manifolds

Details Isometries of complimented subRiemannian manifolds Isometries of complimented subRiemannian manifolds

2012-03-05

arxiv.org/abs/1203.1066v1

Mathematics

Differential Geometry

27 pages

Scientific paper

We show that the group of isometries of a complimented sub-Riemannian manifold form a Lie group and establish dimension estimates based on the torsion of the canonical connection. We explore the interaction of curvature and the structure of isometries and Killing fields and derive a Bochner formula for Killing fields. Sub-Riemannian generalizations of classical results of Bochner and Berger are established. We also apply our theory to common sub-categories of complimented sub-Riemannian geometries and show how to compute the isometry groups for several examples, including SO(n), SL(n) and the rototranslation group.

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