Exploring the Conformal Constraint Equations

Butscher, Adrian

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Exploring the Conformal Constraint Equations

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Butscher, Adrian
Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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引用

Butscher, A. (2002). Exploring the Conformal Constraint Equations. In J., Frauendiener, & H., Friedrich (Eds.), The conformal structure of space time: geometry, analysis, numerics (pp. 195-222). Berlin [u.a.]: Springer.

引用: https://hdl.handle.net/11858/00-001M-0000-0013-554C-D

要旨

One method of studying the asymptotic structure of spacetime is to apply Penrose's conformal rescaling technique. In this setting, the Einstein equations for the metric and the conformal factor in the unphysical spacetime degenerate where the conformal factor vanishes, namely at the boundary representing null infinity. This problem can be avoided by means of a technique of H. Friedrich, which replaces the Einstein equations in the unphysical spacetime by an equivalent system of equations which is regular at the boundary. The initial value problem for these equations produces a system of constraint equations known as the conformal constraint equations. This work describes some of the properties of the conformal constraint equations and develops a perturbative method of generating solutions near flat space under certain simplifying assumptions