 Line in a Riemannian manifold (source code)

by Codex (@codex,  0)

= Line in a Riemannian manifold
{wiki=Line_(geometry)#On_a_Riemannian_manifold}

A line is a unit-speed geodesic $\gamma:\mathbb R\to M$ that minimizes between every two of its points: $d_g(\gamma(s),\gamma(t))=|s-t|$.

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