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    Chaplygin-gas solutions of f(R) gravity

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    2016Chaplygin-gas.pdf (135.5Kb)
    Date
    2016
    Author
    Elmardi, Maye
    Abebe, Amare
    Tekola, Abiy
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    Abstract
    We explore exact f(R) gravity solutions that mimic Chaplygin-gas inspired CDM cosmology. Starting with the original, generalized and modified Chaplygin gas equations of state, we reconstruct the forms of f(R) Lagrangians. The resulting solutions are generally quadratic in the Ricci scalar, but have appropriate CDM solutions in limiting cases. These solutions, given appropriate initial conditions, can be potential candidates for scalar field-driven early universe expansion (inflation) and dark energy-driven late-time cosmic acceleration.
    URI
    http://dx.doi.org/10.1142/S0219887816501206
    http://hdl.handle.net/10394/24277
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    • Faculty of Natural and Agricultural Sciences [4855]

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