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Calendar event : Gravitational waves, black holes and their interaction: a global perspective
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Seminar of the Institute
Title
Gravitational waves, black holes and their interaction: a global perspective
Created by
rem
Start
Wednesday November 22, 2017 16:15:00 CET
End
Wednesday November 22, 2017 17:45:00 CET
Description
Prof. J. Frauendiener, University of Otago
Abstract: It is well known that gravitational waves interact in a non-linear way. This makes it difficult to describe them rigourously. The cleanest description is based on a certain conformal invariance of the Einstein equations — a fact which was established by R. Penrose and was used by H. Friedrich to prove several important global results for general relativistic space-times. The so called conformal field equations implement this conformal invariance on the level of partial differential equations. They provide various well-posed initial (boundary) value problems for use in different situations. The talk will give a computational perspective on the non-linear interaction of plane gravitational waves and also present preliminary results of a simulation of the behaviour of an initially spherically symmetric black hole under the impact of a gravitational wave burst.
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HS 2, Abbeanum
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2018-12-14 16:00
Discontinuous Galerkin Methods for the Wave Equation
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