Equation Icon  { [ ] [ ( ) ]} − -2-- ∂r ∂r(rb) + -1- ∂r rb-∂r (rb) − a + 4Krr K 𝜃𝜃 + 2K 𝜃𝜃 K 𝜃𝜃 (23) arb a rb a 8πG [ 2 2 2 ( 2) ] = --2-- |Φ | + |Π| + a V |ϕ| (24) a ( ) ∂rK 𝜃𝜃 + ∂r (rb)(K 𝜃𝜃 − Krr ) = 2πG- ¯ΠΦ + ΠΦ¯ , (25) rb a