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Isotropisation of Generalized Scalar-Tensor theory plus a massive scalar field in the Bianchi type I model

Stephane Fay
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Abstract

In this paper we study the isotropisation of a Generalized Scalar-Tensor theory with a massive scalar field. We find it depends on a condition on the Brans-Dicke coupling function and the potential and show that asymptotically the metric functions always tend toward a power or exponential law of the proper time. These results generalise and unify these of De Sitter in the case of a cosmological constant and of Cooley and Kitada in the case of an exponential potential.

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Stephane Fay. 2003-09-19. Isotropisation of Generalized Scalar-Tensor theory plus a massive scalar field in the Bianchi type I model. https://doi.org/10.1088/0264-9381%2F18%2F15%2F304

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