Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-02-18
Phys.Rev. D70 (2004) 044031
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
13 pages, revtex4
Scientific paper
10.1103/PhysRevD.70.044031
Motivated by the initial-boundary value problem for the Einstein equations,
we propose a definition of symmetric hyperbolicity for systems of evolution
equations that are first order in time but second order in space. This can be
used to impose constraint-preserving boundary conditions. The general methods
are illustrated in detail in the toy model of electromagnetism.
Gundlach Carsten
Martin-Garcia Jose M.
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