Equation Icon  ϕ ∗0= ϕ0− 2Lϕ0 + L2 ϕ0, (3.81 ) 0∗0 00 01 2 ϕ 1 = ϕ1 − Lϕ2, (3.82 ) ϕ ∗0= ϕ0. (3.83 ) 2 2