# Ghost-free massive gravity with a general reference metric

@article{Hassan2011GhostfreeMG, title={Ghost-free massive gravity with a general reference metric}, author={Sayed Fawad Hassan and Rachel A. Rosen and Angnis Schmidt-May}, journal={Journal of High Energy Physics}, year={2011}, volume={2012}, pages={1-26} }

A bstractTheories of massive gravity inevitably include an auxiliary reference metric. Generically, they also contain an inconsistency known as the Boulware-Deser ghost. Recently, a family of non-linear massive gravity actions, formulated with a flat reference metric, were proposed and shown to be ghost free at the complete non-linear level. In this paper we consider these non-linear massive gravity actions but now formulated with a general reference metric. We extend the proof of the absence…

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