Evidence of chaotic behaviour in Jordan-Brans-Dicke cosmology
Por:
Carretero-González R., Núñez-Yépez H.N., Salas-Brito A.L.
Publicada:
1 ene 1994
Resumen:
We study numerically the properties of solutions of spatially homogeneous Bianchi-type IX cosmological models in the Jordan- Brans-Dicke theory of gravitation. Solutions are obtained in which the scale factors undergo irregular oscillations. The estimate of the maximum Lyapunov exponent is found to be positive in the cases studied. These results seem to be the first pieces of evidence in the literature of chaotic behaviour in Jordan-Brans-Dicke cosmology. The range of values of the Jordan-Brans- Dicke coupling parameter considered is (-500,-1). © 1994.
Filiaciones:
Carretero-González R.:
Laboratorio de Cuernavaca, Instituto de Física, UNAM, Apartado Postal 139-B, Cuernavaca, Mor., Mexico
Núñez-Yépez H.N.:
Departamento de Física, UAM-Iztapalapa, Apartado Postal 55-534, Iztapalapa, 09340, Mexico
Salas-Brito A.L.:
Laboratorio de Sistemas Dinámicos, Departamento de Ciencias Básicas, UAM-Azcapotzalco, Apartado Postal 21-726, Coyoacán, 04000, Mexico
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