SCALAR PERTURBATIONS IN f(R)-COSMOLOGIES

Автор(и)

  • M. Eingorn North Carolina Central University, США
  • J. Novak Charles University in Prague, Faculty of mathematics and physics, Чехія

DOI:

https://doi.org/10.18524/1810-4215.2013.26.82589

Ключові слова:

alternative theories of gravity, f(R) nonlinear theories, cosmological perturbation theory, scalar perturbations, scalaron, Yukawa potential

Анотація

We take first steps to generalizing the recently developed mechanical (non-hydrodynamical), or discrete (discontinuous), approach to cosmological problems on intermediate, semiastrophysical semicos- mological, scales to the case of nonlinear gravity. In the framework of the f(R) theory we study the scalar perturbations in the flat space and derive the corre­sponding gravitational potentials.

Посилання

DeFelice A., Tsujikawa S.: 2010, Living Reviews Relativity 13, arXiv:1002.4928,f(R)-theories.

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Опубліковано

2013-11-09

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