Equation Icon  L (u ,ζ,ζ¯) = ∂ G (τ,ζ, ¯ζ) = ξa(τ)ˆm (ζ, ¯ζ), (5.42 ) B (τ) a uB = ξa (τ )ˆla(ζ, ¯ζ). (5.43 )