Generating $G_2$--cosmologies with perfect fluid in dilaton gravity

Details Generating $G_2$--cosmologies with perfect fluid in dilaton gravity Generating $G_2$--cosmologies with perfect fluid in dilaton gravity

2003-06-03

arxiv.org/abs/gr-qc/0306012v1

Phys.Rev. D68 (2003) 104021

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, LaTex

Scientific paper

10.1103/PhysRevD.68.104021

We present a method for generating exact diagonal $G_2$-cosmological
solutions in dilaton gravity coupled to a radiation perfect fluid and with a
cosmological potential of a special type. The method is based on the symmetry
group of the system of $G_2$-field equations. Several new classes of explicit
exact inhomogeneous perfect fluid scalar-tensor cosmologies are presented.

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