Brendan Foster

Scale-Invariant Geometrodynamics

I will discuss a scale-invariant version of GR that possesses symmetry under conformal transformations of the three-dimensional Riemannian geometry. This symmetry renders the volume of the (closed) 3-D slices a non-dynamical variable, leaving just the shape degrees-of-freedom, but a `relative' notion of local scale does emerge. The theory carries strong Machian motivations and makes wild cosmological claims.

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