Hyperextended Scalar-Tensor Gravity

Details Hyperextended Scalar-Tensor Gravity Hyperextended Scalar-Tensor Gravity

1996-10-10

arxiv.org/abs/gr-qc/9610022v1

Phys.Rev.D54:7373-7377,1996

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

latex file, To appear in Physical Review D

Scientific paper

10.1103/PhysRevD.54.7373

We study a general Scalar-Tensor Theory with an arbitrary coupling funtion $\omega (\phi )$ but also an arbitrary dependence of the ``gravitational constant'' $G(\phi )$ in the cases in which either one of them, or both, do not admit an analytical inverse, as in the hyperextended inflationary scenario. We present the full set of field equations and study their cosmological behavior. We show that different scalar-tensor theories can be grouped in classes with the same solution for the scalar field.

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