Reconstruction of Domain Wall Universe and Localization of Gravity
  We construct a four-dimensional domain wall universe by using the Brans-Dicke
type gravity with two scalar field. We give a formulation where for arbitrarily
given warp factor and scale factor, we construct an action which reproduces
both of the warp and scale factors as a solution of the Einstein equation and
the field equations given by the action. This formulation could be called as
reconstruction. We show that the model does not contain ghost with negative
kinetic term and there occur the localization of gravity as in the
Randall-Sundrum model. It should be noted that in the equation of the graviton,
there appear extra terms related with the extra dimension, which might affect
the tensor mode in the fluctuations
