Equation Icon  d [ 2 ] 2 Φ = α − --- a (γ + β∕a ) , Ψ = − ψ + a H (˙γ + β∕a ), (6.29 ) dt ℛ = ψ + -H----δq, ℛ δϕ = ψ − H-δϕ, ℛ δF = ψ − H--δF, (6.30 ) ρ + P ˙ϕ F˙ δρq = δρ − 3H δq. (6.31 )