Definition:Radial Geodesic in Normal Neighborhood
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Definition
Let $\struct {M, g}$ be an $n$-dimensional Riemannian manifold.
Let $U_p$ be the normal neighborhood for $p \in M$.
Let $\struct {U_p, \tuple {x^i}}$ be a normal coordinate chart.
Let $I \subseteq \R$ be a real interval such that $0 \in I$.
Let $\map \gamma t : I \to M$ be the geodesic such that:
- $\map \gamma 0 = p$
Suppose:
- $\map \gamma I \subseteq U$
Then $\gamma$ is called the radial geodesic.
Sources
- 2018: John M. Lee: Introduction to Riemannian Manifolds (2nd ed.) ... (previous) ... (next): $\S 5$: The Levi-Civita Connection. Normal Neighborhoods and Normal Coordinates