Equation Icon  ----------------------------------- ∘ T −1 T FF (ξ) := max a-⋅-Qs(ξ,ζ)-⋅ Ms-(ζ-)-⋅ Qs-(ξ,ζ)-⋅ a. (116 ) (a,ζ) aT ⋅ M (ξ) ⋅ a