Averaging in LRS class II spacetimes

Article

Averaging in LRS class II spacetimes

Svítek, O.; Kašpar, P.

Gen. Relativ. Gravit. 47, 4 (2015)

Abstract

We generalize Buchert’s averaged equations (Gen Relativ Gravit 32; 105,
2000; Gen Relativ Gravit 33; 1381, 2001) to LRS class II dust model in the sense
that all Einstein equations are averaged, not only the trace part.We derive the relevant
averaged equations and we investigate backreaction on expansion and shear scalars in
an approximate LTB model. Finally we propose a way to close the system of averaged
equations.

Keywords

LRS family · Cosmology · Averaging

Institute authors

Svítek, Otakar

BibTeX

@article{UTF545,
  author        = {Svítek, O. and Kašpar, P.},
  title         = {{Averaging in LRS class II spacetimes}},
  journal       = {Gen. Relativ. Gravit.},
  volume        = {47},
  pages         = {4},
  year          = {2015},
  doi           = {10.1007/s10714-014-1844-6},
}