Effective gravitational equations for f(R) braneworld models
  The viability of achieving gravitational consistent braneworld models in the framework of a f(R) theory of gravity is investigated. After a careful generalization of the usual junction conditions encompassing the embedding of the 3-brane into a f(R) bulk, we provide a prescription giving the necessary constraints in order to implement the projected second order effective field equations on the brane. 
T. R. P. Carames (IF/UFF), M. E. X. Guimaraes (IF/UFF) and J. M. Hoff   da Silva (FEG/UNESP)
gr-qc hep-th