PERTURBATIONS OF FRIEDMAN-LEMAITRE-ROBERTSON-WALKER SPACETIMES IN GEROCH-HELD-PENROSE FORMALISM

Abstract

We will use Geroch-Held-Penrose formalism for decoupling of quantity dΨ4, which is responsible for tensorial perturbations, in Bianchi equations. We will concentrate on the case, where we eliminate the source terms

Keywords

• friedman-lemaitre-robertson-walker spacetime
• geroch-held-penrose formalism
• newmanpenrose formalism
• weyl scalars