X iv : g r - qc / 9 30 40 14 v 1 1 2 A pr 1 99 3 The Fourth Root of Gravity ∗
نویسنده
چکیده
By attaching basis vectors to the components of matter fields, one may render free action densities fully covariant. Both the connection and the tetrads are quadratic forms in these basis vectors. The metric of spacetime, which is quadratic in the tetrads, is then quartic in the basis vectors. ∗Submitted to the 1993 competition of the Gravity Research Foundation.
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تاریخ انتشار 2008