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Generating G 2 cosmologies with a perfect fluid in dilaton gravity

Generating G 2 cosmologies with a perfect fluid in dilaton gravity We present a method for generating exact diagonal cosmological solutions with two spacelike commuting Killing vectors ( G 2 cosmologies) 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Generating G 2 cosmologies with a perfect fluid in dilaton gravity

Physical Review D , Volume 68 (10) – Nov 15, 2003
5 pages

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Publisher
American Physical Society (APS)
Copyright
Copyright © 2003 The American Physical Society
ISSN
1089-4918
DOI
10.1103/PhysRevD.68.104021
Publisher site
See Article on Publisher Site

Abstract

We present a method for generating exact diagonal cosmological solutions with two spacelike commuting Killing vectors ( G 2 cosmologies) 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.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Nov 15, 2003

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