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arxiv: gr-qc/0412002 · v1 · submitted 2004-12-01 · 🌀 gr-qc

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The initial value problem in numerical relativity

Harald P. Pfeiffer
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classification 🌀 gr-qc
keywords initialconformalcurvaturedatadecompositionequationsextrinsicnumerical
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The conformal method for constructing initial data for Einstein's equations is presented in both the Hamiltonian and Lagrangian picture (extrinsic curvature decomposition and conformal thin sandwich formalism, respectively), and advantages due to the recent introduction of a weight-function in the extrinsic curvature decomposition are discussed. I then describe recent progress in numerical techniques to solve the resulting elliptic equations, and explore innovative approaches toward the construction of astrophysically realistic initial data for binary black hole simulations.

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