The conformal Einstein field equations and the local extension of future null infinity
The conformal Einstein field equations and the local extension of future null infinity
We make use of an improved existence result for the characteristic initial value problem for the conformal Einstein equations to show that given initial data on two null hypersurfaces N⋆ and N⋆′ such that the conformal factor (but not its gradient) vanishes on a section of N⋆, one recovers a …