Towards the nonlinear regime in extensions to GR: assessing possible options
Towards the nonlinear regime in extensions to GR: assessing possible options
Testing General Relativity and exploring possible departures has received further input with the possibility to do so through gravitational waves emitted in strongly gravitating/highly dynamical scenarios and also through the availability of exquisitely sensitive cosmological observations. However, most extensions suffer from severe pathologies at the mathematical level which have stymied …