On the true nature of renormalizability in Horava-Lifshitz gravity
  We argue that the true nature of the renormalizability of Horava-Lifshitz gravity lies in the presence of higher order spatial derivatives and not in the anisotropic Lifshitz scaling of space and time. We discuss the possibility of constructing a higher order spatial derivatives model that has the same renormalization properties of Horava-Lifshitz gravity but that does not make use of the Lifshitz scaling. In addition, the state-of-the-art of the Lorentz symmetry restoration in Horava-Lifshitz-type theories of gravitation is reviewed. 
Fabio Briscese (1,2), Yeinzon Rodriguez (1,3), Guillermo A. Gonzalez   (1), ((1) Escuela de Fisica Universidad Industrial de...
hep-th gr-qc