Constraint-preserving boundary treatment for a harmonic formulation of the Einstein equations

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We present a set of well-posed constraint-preserving boundary conditions for a first-order in time, second-order in space, harmonic formulation of the Einstein equations. The boundary conditions are tested using robust stability, linear and nonlinear waves, and are found to be both less reflective and constraint preserving than standard Sommerfeld-type boundary conditions.
18 pages, 7 figures, accepted in CQG

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General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/205529

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0802.3341
 http://arxiv.org/abs/0802.3341
 Class.Quant.Grav.25:175020,2008
 doi:10.1088/0264-9381/25/17/175020

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arXiv