MG12 - Talk detail |
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Participant |
Frauendiener, Jorg | |
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Institution |
University of Otago - Dept. of Mathematics and Statistics, PO Box 56 - Dunedin - - New Zealand | |
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Session |
Talk |
Abstract |
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ANM4 |
Compatible discretisations in General Relativity |
The Einstein equations are a special in two ways: 1. they are geometric equations in the sense that they express conditions on the underlying geometry and are therefore invariant under arbitrary coordinate transformations and they are (2) derivable from a variational principle, which implies that there is an underlying symplectic structure. Both aspects could be used in numerical simulations and the talk explores various attempts to do so. |
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MGAT7 |
The sphericaly symmetric elastic body in GR |
In this talk a short account of the theory of relativistic elasticity as developed by Carter-Quintana, Kijowski-Magli and Beig-Schmidt will be presented. Some results and numerical studies for the case of a spherically symmetric static body will be given. |