Abstract
In this thesis we outlined an approach for computing consistent perturbations to the generalized gravitational field equations for physically meaningful theories. The approach requires a field content, but does not require a particular Lagrangian to be presented for calculations to be performed. Once the field content has been specified we have shown how to write down an effective action for linearized perturbations, and from that how to compute the generalized perturbed gravitational field equations
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Pearson, J. (2014). Discussion and Final Remarks. In: Generalized Perturbations in Modified Gravity and Dark Energy. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-01210-0_9
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