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Differential invariants of Kundt spacetimes

Differential Geometry 2021-09-22 v1

Abstract

We find generators for the algebra of rational differential invariants for general and degenerate Kundt spacetimes and relate this to other approaches to the equivalence problem for Lorentzian metrics. Special attention is given to dimensions three and four.

Keywords

Cite

@article{arxiv.2103.03693,
  title  = {Differential invariants of Kundt spacetimes},
  author = {Boris Kruglikov and Eivind Schneider},
  journal= {arXiv preprint arXiv:2103.03693},
  year   = {2021}
}

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24 pages