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hep-th2007★ 53 cited
Bigravity and Lorentz-violating Massive Gravity
D. Blas, C. Deffayet, J. Garriga
Bigravity is a natural arena where a non-linear theory of massive gravity can be formulated. If the interaction between the metrics and is non-derivative, spherically symme…
hep-th2005
Global structure of bigravity solutions
Diego Blas, Cedric Deffayet, Jaume Garriga
We discuss the causal diagrams of static and spherically symmetric bigravity vacuum solutions, with interacting metrics and . Such solutions can be classified into type I (o…