Some FRW models with variable G and Λ

We consider several models with metrics type FRW, with k = 0 and with a generic equation of state, p = ωρ, furthermore, we take into account the conservation principle of the energy-momentum tensor, div(Tij) = 0, but with G and Λ variable. We find trivially, a set of solutions through dimensional analysis. We emphasize that, G ∝ t1+3ω, i.e. it depend on the state equation and Λ ∝ t−2 in any case.