Общие работы по физике

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TESTING BINARY BLACK HOLE CODES IN STRONG FIELD REGIMES

Автор: David Garrison
Год: 2011
Издание: LAP Lambert Academic Publishing
Страниц: 128
ISBN: 9783844314458
In order to further our understanding of the instabilities which develop in numerical relativity codes, I study vacuum solutions of the cosmological type (T^3 topology). Specifically, I focus on the 3+1 ADM formulation of Einsteins equations. This involves testing the numerical code using the following non-trivial periodic solutions, Kasner, Gowdy, Bondi and non-linear gauge waves. I look for constraint violating and gauge mode instabilities as well as numerical effects such as convergence, dissipation and dispersion. I will discuss techniques developed to investigate the stability properties of the numerical code.
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