Fwd: PS

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Subject: Fwd: PS
Date: Mon, 27 Apr 2009 09:49:22 EDT

The inversion of single tetrad elements avoids the problem of matrix inversion for non-square matrices, therefore dimensions of base manifold and tangent space can be different.

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This is a good point. In previous papers I have used a non-square tetrad in which each element is deemed to be invertible.

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