  The DGP-model with additional terms in the action is considered. These terms
have a special form and include auxiliary scalar fields without kinetic terms,
which are non-minimally coupled to gravity. The use of these fields allows one
to exclude the mode, which corresponds to the strong coupling effect, from the
theory. Effective four-dimensional theory on the brane appears to be the same,
as in the original DGP-model.

High Energy Physics - Theory