Browsing Faculty of Natural and Agricultural Sciences by Subject "f(R) gravity"

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    • Chaplygin-gas solutions of f(R) gravity 

      Elmardi, Maye; Abebe, Amare; Tekola, Abiy (World Scientific Publishing, 2016)
      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. ...

    • On f(R) gravity in scalar-tensor theories 

      Ntahompagaze, Joseph; Abebe, Amare; Mbonye, Manasse (World Scientific, 2017)
      We study f(R) gravity models in the language of scalar–tensor (ST) theories. The correspondence between f(R) gravity and ST theories is revisited since f(R) gravity is a subclass of Brans–Dicke models, with a vanishing ...