Volume 46, Number 6, June II 1999
|Page(s)||832 - 837|
|Section||Geophysics, astronomy and astrophysics|
|Published online||01 September 2002|
Inhomogeneous cosmological models in scalar-tensor theories
Mathematics, Statistics and Computing Science and Department of
Physics, Dalhousie University -
Halifax, Nova Scotia, Canada B3H 3J5
2 Departamento de Física Teórica, Universidad del Pais Vasco - Bilbao, Spain
Accepted: 13 April 1999
Exact self-similar spatially inhomogeneous cosmological models are found in a class of scalar-tensor theories of gravity by exploiting the formal equivalence of this class of theories (under a conformal transformation and field redefinition) to general relativity minimally coupled to a scalar field with an exponential potential. We argue that these exact self-similar solutions may play an important role in describing the asymptotic behaviour (both at early and at late times) of more general scalar-tensor models. The possible isotropization and the homogenization of these models is briefy discussed.
PACS: 98.80.Hw – Mathematical and relativistic aspects of cosmology; quantum cosmology
© EDP Sciences, 1999
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.