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The evolution of tensor perturbations in scalar-tensor theories of gravity
Sante Carloni, Peter K. S. Dunsby
The evolution equations for tensor perturbations in a generic scalar tensor theory of gravity are presented. Exact solution are given for a specific class of theories and Friedmann…
A dynamical system approach to higher order gravity
Sante Carloni, Peter K. S. Dunsby
The dynamical system approach has recently acquired great importance in the investigation on higher order theories of gravity. In this talk I review the main results and I give bri…
Gauge invariant perturbations of Scalar-Tensor Cosmologies: The vacuum case
Sante Carloni, Peter K. S. Dunsby, Claudio Rubano
The covariant gauge invariant perturbation theory of scalar cosmological perturbations is developed for a general Scalar-Tensor Friedmann-Lemaitre-Robertson-Walker cosmology in a v…
Shear dynamics in Bianchi I cosmologies with R^n-gravity
Jannie A Leach, Sante Carloni, Peter K S Dunsby
We give the equations governing the shear evolution in Bianchi spacetimes for general f(R)-theories of gravity. We consider the case of R^n-gravity and perform a detailed analysis…