Black holes, cosmological singularities and change of signature

Details Black holes, cosmological singularities and change of signature Black holes, cosmological singularities and change of signature

1994-11-25

arxiv.org/abs/gr-qc/9411063v1

Class.Quant.Grav.12:503-512,1995

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14pages, Latex, no figure

Scientific paper

10.1088/0264-9381/12/2/019

There exists a widespread belief that signature type change could be used to avoid spacetime singularities. We show that signature change cannot be utilised to this end unless the Einstein equation is abandoned at the suface of signature type change. We also discuss how to solve the initial value problem and show to which extent smooth and discontinuous signature changing solutions are equivalent.

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