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Emergent scenario and different anisotropic models. (English) Zbl 1235.83104

Summary: The Emergent Universe scenario is been developed in a general homogeneous anisotropic model and for the inhomogeneous LTB model. In the first case, it is assumed that the matter in the universe has two components – one is perfect fluid with barotropic equation of state \(p=\omega \rho\) (\(\omega\), a constant) and the other component is a real or phantom (or tachyonic) scalar field. In the second case, the universe is only filled with a perfect fluid and possibilities for the existence of emergent scenario has been examined.

MSC:

83F05 Relativistic cosmology
83D05 Relativistic gravitational theories other than Einstein’s, including asymmetric field theories
83C15 Exact solutions to problems in general relativity and gravitational theory
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