Abstract
It is proved that every homogeneous Riemannian manifold admits a geodesic which is an orbit of a one-parameter group of isometries.
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Kowalski, O., Szenthe, J. On the Existence of Homogeneous Geodesics in Homogeneous Riemannian Manifolds. Geometriae Dedicata 81, 209–214 (2000). https://doi.org/10.1023/A:1005287907806
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DOI: https://doi.org/10.1023/A:1005287907806