Equation Icon  ( [ρ ] [ρ ] ( ρ ) ) LαL [β,α] = v∥ ⋅ ∇ -(c2 − v2⊥) ;∇j -(c2 − v2⊥) + vi∥ -|v⊥ |ˆn . (71 ) c c c [j,i]