Equation Icon  ˆb1,2(Ω) = ℝ1,2(Ω)ˆa1,2(Ω) + 𝕋(Ω )ˆa2,1(Ω ) + 2 √ γ1,2𝕃(Ω )ˆX (Ω), (290 ) [ ] eˆ(Ω) = √1--𝕃(Ω ) √ γ1,2ˆa1,2(Ω) + √ γ2,1ˆa2,1(Ω) + ˆX (Ω) , (291 ) τ