Equation Icon  ∑ ∑ λℓ lim ⟨χΛ(x1) ...χΛ(xn)⟩SΛ,ℓ =: λ ℓ⟨χ μ(x1)...χ μ(xn)⟩Sμ,ℓ, (2.3 ) ℓ≥0 Λ →∞ ℓ≥0