Displaying similar documents to “Gravitational lensing from a spacetime perspective.”

Post-Newtonian approximation in the test particle limit

Misao Sasaki (1997)

Banach Center Publications

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Gravitational radiation from a small mass particle orbiting a massive black hole can be analytically studied to a very high order in the post-Newtonian expansion. Thus it gives us useful information on the evolution of a coalescing compact binary star. In this talk, I report on recent progress made in the black-hole perturbation approach.

Integral formulas related to wave fronts

Sergeĭ Anisov (1999)

Banach Center Publications

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In the first section of the paper we study some properties of oriented volumes of wave fronts propagating in spaces of constant curvature. In the second section, we generalize to an arbitrary isometric action of a Lie group on a Riemannian manifold the following principle: an extra pression inside of a ball does not move it.