Selfgravitating nonlinear scalar fields

Details Selfgravitating nonlinear scalar fields Selfgravitating nonlinear scalar fields

2000-06-16

arxiv.org/abs/gr-qc/0006059v1

J.Math.Phys. 38 (1997) 3650-3668

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

30 pages

Scientific paper

10.1063/1.532059

We investigate the Cauchy problem for the Einstein - scalar field equations in asymptotically flat spherically symmetric spacetimes, in the standard 1+3 formulation. We prove the local existence and uniqueness of solutions for initial data given on a space-like hypersurface in the Sobolev $H_1\cap H_{1,4} $ space. Solutions exist globally if a central (integral) singularity does not form and/or outside an outgoing null hypersurface. An explicit example demonstrates that there exists a local evolution with a naked initial curvature singularity at the symmetry centre.

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