• Corpus ID: 119204317

Are singularities the limits of cosmology

  title={Are singularities the limits of cosmology},
  author={Mariusz P. Da̧browski},
  journal={arXiv: General Relativity and Quantum Cosmology},
  • M. Da̧browski
  • Published 17 July 2014
  • Physics, Mathematics
  • arXiv: General Relativity and Quantum Cosmology
We refer to the classic definition of a singularity in Einstein's general relativity (based on geodesic incompletness) as well as to some other criteria to evaluate the nature of singularities in cosmology. We review what different (non-Big-Bang) types of singularities are possible even in the simplest cosmological framework of Friedmann cosmology. We also show that various cosmological singularities may be removed or changed due to the variability of physical constants. 

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