Dual geometries and spacetime singularities - art. no. 124026

The notion of geometrical duality is discussed in the context of both Brans -Dicke theory and general relativity. It is shown that, in some particular solutions, the spacetime singularities that arise in usual Riemannian gener al relativity may be avoided in its dual representation (Weyl-type general relativity). This dual representation provides a singularity-fret picture o f the world that is physically equivalent to the canonical general relativi stic one.