Find killing equations for spherical polar coordinates
Killing vector field is a vector field on a Riemannian manifold that preserves the metric.
Killing equation:
Killing fields on a 2-sphere:
The conventional metric on the sphere is
Rotation about the pole should be an isometry. The infinitesimal generator of a rotation can then be identified as a generator of the Killing field. This can be
The surface of the sphere is two-dimensional, and there is another generator of isometries; it can be taken as
conventional 3-space coordinate system is given by
first generator, rotation about the z-axis:
second generator, rotation about the x-axis:
third generator, rotation about the x-axis:
Normalizing this, and expressing these in spherical coordinates:
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