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Covariant singularities: a brief review

High Energy Physics - Theory 2022-03-23 v1 General Relativity and Quantum Cosmology

Abstract

The Hawking-Penrose theorem is not covariant under field redefinitions. Should the invariance under such transformations be a true principle in Nature, spacetime singularities become dubious objects. We here review the concept of covariant singularities, that is, singularities that are invariant under both spacetime diffeomorphisms and field redefinitions.

Keywords

Cite

@article{arxiv.2203.11259,
  title  = {Covariant singularities: a brief review},
  author = {Roberto Casadio and Alexander Kamenshchik and Iberê Kuntz},
  journal= {arXiv preprint arXiv:2203.11259},
  year   = {2022}
}

Comments

Accepted for publication in Mod. Phys. Lett. A

R2 v1 2026-06-24T10:21:03.550Z