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On the variational derivation of Einstein's strong field equations
Published online by Cambridge University Press: 17 February 2009
Abstract
It is shown that the necessary and sufficient condition for the transposition invariance of the field equations derivable from an Einstein-Kaufman variational action principle is the vanishing of xythe vector Γλ. When this condition is satisfied, the field equations become the so-called strong field equations of Einstein. In this sense, the latter can be claimed to follow from the same action principle.
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- Copyright © Australian Mathematical Society 1976
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