{ "id": "2202.09085", "version": "v1", "published": "2022-02-18T09:04:37.000Z", "updated": "2022-02-18T09:04:37.000Z", "title": "Homogeneous geodesics in sub-Riemannian geometry", "authors": [ "A. V. Podobryaev" ], "categories": [ "math.DG", "math.OC" ], "abstract": "We study homogeneous geodesics of sub-Riemannian manifolds, i.e., normal geodesics that are orbits of one-parametric subgroups of isometries. We obtain a criterion for a geodesic to be homogeneous in terms of its initial momentum. We prove that any weakly commutative sub-Riemannian homogeneous space is geodesic orbit, that means all geodesics are homogeneous. We discuss some examples of geodesic orbit sub-Riemannian manifolds. In particular, we show that geodesic orbit Carnot groups are only groups of step $1$ and $2$. Finally, we get a broad condition for existence of at least one homogeneous geodesic.", "revisions": [ { "version": "v1", "updated": "2022-02-18T09:04:37.000Z" } ], "analyses": { "subjects": [ "53C30", "53C17", "35R03" ], "keywords": [ "homogeneous geodesic", "sub-riemannian geometry", "geodesic orbit carnot groups", "geodesic orbit sub-riemannian manifolds", "weakly commutative sub-riemannian homogeneous space" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }