Abstract

It is known that a flat Friedmann-Lemaître-Robertson-Walker(FLRW) spacetime can be joined smoothly to a particular case of theKasner vacuum spacetime. We apply the Darmois junction conditions toshow that such a matching can be extended to an open FLRW spacetime. Wealso investigate the effect of a non-zero cosmological constantΛ on the matchings and conclude that the presence of theconstant has no significant effect.

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