Constraint-preserving Sommerfeld conditions for the harmonic Einstein equations

• 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.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

NUMERICAL RELATIVITY

WAVE-EQUATION

EVOLUTION

GAUGE

Physics

Fysik

Publication and Content Type

ref (subject category)

art (subject category)