Abstract
We show how to construct a generating family for the singularities of the null surface that is obtained by following null geodesics normal to a spacelike closed two-surface. The construction is based on the priciple of least time of arrival of light signals from a source to a localized observer.
Dedicated to Jayant Narlikar.
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© 2000 Springer Science+Business Media Dordrecht
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Newman, E.T., Frittelli, S. (2000). A Variational Principle for Time of Arrival of Null Geodesics. In: Dadhich, N., Kembhavi, A. (eds) The Universe. Astrophysics and Space Science Library, vol 244. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4050-8_21
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DOI: https://doi.org/10.1007/978-94-011-4050-8_21
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-5784-4
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