arXiv physics/06091612006-09-19physics.gen-ph

Geometrical optics in general relativity

A. Loinger

备注：: 6 pages, LaTeX, to be published on Spacetime & Substance

英文摘要：

General relativity includes geometrical optics. This basic fact has relevant consequences that concern the physical meaning of the discontinuity surfaces propagated in the gravitational field - as it was first emphasized by Levi-Civita.

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