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Dynamical shift conditions for the Z4 and BSSN hyperbolic formalisms

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arxiv gr-qc/0401019 v2 pith:LAMWKKU7 submitted 2004-01-07 gr-qc

C. Bona , C. Palenzuela This is my paper · ORCID
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keywords shiftconditionsdynamicalbssnclassformalismshyperbolicspeed
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A class of dynamical shift conditions is shown to lead to a strongly hyperbolic evolution system, both in the Z4 and in the BSSN Numerical Relativity formalisms. This class generalizes the harmonic shift condition, where light speed is the only non-trivial characteristic speed, and it is contained into the multi-parameter family of minimal distortion shift conditions recently proposed by Lindblom and Scheel. The relationship with the analogous 'dynamical freezing' shift conditions used in black hole simulations discussed.

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Cited by 2 Pith papers

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