Sufficient conditions for curvature invariants to avoid divergences in hyperextended scalar-tensor theory for Bianchi models
Stéphane Fay; Stéphane Fay; 14 rue de l'Étoile, 75017 Paris, France
Журнал:
Classical and Quantum Gravity
Дата:
2000-07-21
Аннотация:
We look for sufficient conditions such that the scalar curvature, Ricci and Kretchmann scalars are bounded in hyperextended scalar-tensor theory for Bianchi models. We find classes of gravitation functions and Brans-Dicke coupling functions such that the theories thus defined avoid the singularity. We compare our results with these found by Rama within the framework of the generalized scalar-tensor theory for the FLRW models.
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