Analytic approximation and perturbation methods

Abstract

The oral presentations of the workshop A4 on analytic approximation and perturbation methods are summarised. Topics covered include post-Newtonian approximations, radiation reaction in general relativity, post-Minkowskian approximations, rotational perturbations, black hole pertubations and quasi-normal modes, Efroimsky formalism, background independent gravitational waves and cosmological perturbations.