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gr-qc2025
Multiple-scale analysis of modified gravitational-wave propagation
Marco de Cesare, Mairi Sakellariadou, Benjamin Sutton
We employ multiple-scale analysis to systematically derive analytical approximations describing the cosmological propagation of gravitational waves beyond general relativity, in a…
gr-qc2025
Analytical constraints on gravitational models with a quadratic Weyl tensor
Benjamin Sutton, Antonio de Felice, Mairi Sakellariadou
We set analytical constraints on the parameter space of models of gravity containing a term quadratic in Weyl curvature . In this class of models, there are four propagatin…