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Over the Rainbow: Numerical Relativity beyond Scri+

Charles W. Misner
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Abstract

This is a study of the behavior of wave equations in conformally compactified spacetimes suited to the use of computational boundaries beyond Scri+. There light cones may be adjusted for computational convenience and/or Scri+ may be approximated by a "proto-Scri" spacelike hypersurface just outside a de Sitter horizon. One expects a numerical implementation to excise the physically unnecessary universe somewhat beyond the outer horizon. As an entry level example I study forms of the Maxwell equations and causal relations for an outer boundary in that example.

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Charles W. Misner. 2006-03-13. Over the Rainbow: Numerical Relativity beyond Scri+. https://arxiv.org/abs/gr-qc/0512167

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