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Evolution of initially contracting Bianchi Class A models in the presence of an ultra-stiff anisotropic pressure fluid
(Institute of PhysicsClassical and Quantum Gravity, 2016-05-12)
We study the behaviour of Bianchi class A universes containing an ultra-stiff isotropic ghost field and a fluid with anisotropic pressures which is also ultra-stiff on the average. This allows us to investigate whether ...
Evolution of cyclic mixmaster universes with noncomoving radiation
We study a model of a cyclic, spatially homogeneous, anisotropic mixmaster universe of Bianchi type IX 'mixmaster' universe, containing the a radiation field with non-comoving ('tilted' with respect to the tetrad frame of ...