ar X iv : g r - qc / 0 50 30 51 v 3 1 4 Ju l 2 00 7 Universally Coupled Massive Gravity ∗


We derive Einstein’s equations from a linear theory in flat spacetime using free-field gauge invariance and universal coupling. The gravitational potential can be either covariant or contravariant and of almost any density weight. We adapt these results to yield universally coupled massive variants of Einstein’s equations, yielding two one-parameter… (More)