Scalar-Tensor Theory of Gravity on $M_4\times Z_2$ Geometry

Abstract

In the Brans-Dicke(BD) theory on $M_4\times Z_2$ geometry the geometrical meaning of the torsion is clarified. The BD theory on $M_4\times Z_2$ is rederived by taking into account of a new isometry condition.

17 pages, LaTeX, no figures