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Constraint-preserving Sommerfeld conditions for the harmonic Einstein equations
KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
2007 (English)In: PHYSICAL REVIEW D, ISSN 1550-7998, Vol. 75, no 4, 044002- p.Article in journal (Refereed) Published
Abstract [en]

The principle part of Einstein equations in the harmonic gauge consists of a constrained system of 10 curved space wave equations for the components of the space-time metric. A new formulation of constraint-preserving boundary conditions of the Sommerfeld-type for such systems has recently been proposed. We implement these boundary conditions in a nonlinear 3D evolution code and test their accuracy.

Place, publisher, year, edition, pages
2007. Vol. 75, no 4, 044002- p.
Keyword [en]
NUMERICAL RELATIVITY, WAVE-EQUATION, EVOLUTION, GAUGE
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-36039DOI: 10.1103/PhysRevD.75.044002ISI: 000244535200040Scopus ID: 2-s2.0-33846676715OAI: oai:DiVA.org:kth-36039DiVA: diva2:430004
Note
QC 20110706Available from: 2011-07-06 Created: 2011-07-06 Last updated: 2011-07-06Bibliographically approved

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