## On Isotropic Coordinates and Einstein's Gravitational Field

**Authors:** Stephen J. Crothers

It is proved herein that the metric in the so-called "isotropic coordinates" for Einstein's
gravitational field is a particular case of an infinite class of equivalent metrics.
Furthermore, the usual interpretation of the coordinates is erroneous, because in the
usual form given in the literature, the alleged coordinate length
(see paper) is
not a coordinate length. This arises from the fact that the geometrical relations between
the components of the metric tensor are invariant and therefore bear the same relations
in the isotropic system as those of the metric in standard Schwarzschild coordinates.

**Comments:** 6 pages

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### Submission history

[v1] 3 Jan 2011

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