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arxiv:1701.06573

Linking Past and Future Null Infinity in Three Dimensions

Published on Jan 23, 2017
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Abstract

We provide a mapping between past null and future null infinity in three-dimensional flat space, using symmetry considerations. From this we derive a mapping between the corresponding asymptotic symmetry groups. By studying the metric at asymptotic regions, we find that the mapping is energy preserving and yields an infinite number of conservation laws.

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