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gr-qc2025
Inflaton Dynamics in Higher-Derivative Scalar-Tensor Theories of Gravity
Sam E. Brady, Katy Clough, Pau Figueras +1
During inflation, higher derivative terms in the gravitational action may play a significant role. Building on new stable formulations of four-derivative scalar-tensor theories, we…
gr-qc2025★ 1 cited
GRTresna: An open-source code to solve the initial data constraints in numerical relativity
Josu C. Aurrekoetxea, Sam E. Brady, Llibert Aresté-Saló +11
GRTresna is a multigrid solver designed to solve the constraint equations for the initial data required in numerical relativity simulations. In particular, it is focussed on scenar…