Reply to "Can gravitational dynamics be obtained by diffeomorphism invariance of action?"
arXiv:gr-qc/0703080 · doi:10.1103/PhysRevD.75.068502
Abstract
In a previous work we showed that, in a suitable setting, one can use diffeomorphism invariance in order to derive gravitational field equations from boundary terms of the gravitational action. Standing by our results we reply here to a recent comment questioning their validity.
Accepted for publication in PRD