Abstract
Theorems state that gravitational collapse from generic but non-singular initial conditions results in some type of singular behavior. Here the nature of the resultant approach to the singularity is examined in spatially homogeneous, anisotropic, vacuum cosmological spacetimes . The approach to the singularity in these spacetimes is either (asymptotically) Kasner-like or Mixmaster-like. It has been conjectured that spatially inhomogeneous cosmological spacetimes approach the singularity through Kasner-like or Mixmaster-like dynamics at every spatial point. Several examples of such cosmologies are explored numerically and heuristically. The current status of a rigorous statement of this conjecture and possible approaches to a proof are discussed. This chapter will focus on singularities in cosmological spacetimes.
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Abbreviations
- ADM:
-
Arnowitt, Deser, Misner
- AVTD:
-
asymptotically velocity term dominated
- BKL:
-
Belinski, Khalatnikov, Lifshitz
- FRW:
-
Friedmann–Robertson–Walker
- LSF:
-
logarithmic scale factor
- MCP:
-
method of consistent potentials
- MSS:
-
minisuperspace
- VTD:
-
velocity term dominated
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Berger, B.K. (2014). Singularities in Cosmological Spacetimes. In: Ashtekar, A., Petkov, V. (eds) Springer Handbook of Spacetime. Springer Handbooks. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-41992-8_21
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