“…[g](ξ, τ )ie iθ K β 2 ,β 3 a (τ, q) j K α θ,a (τ, q)σ θ τ = 1 2 [ K α 0 ,α 1 a (τ, q)(dτ [2] ∧ dτ ) − K α 2 ,α 3 a (τ, q)ie −iθ (dτ [1] ∧ dτ ) ] + 1 2 [−K α 0 ,α 1 a (τ, q)ie iθ (dτ [1] ∧ dτ ) + K α 2 ,α 3 a (τ, q)(dτ [2] ∧ dτ ) ]j σ θ τ K β θ,a (τ, q) = 1 2 [ (dτ [2] ∧ dτ )K β 0 ,β 1 a (τ, q) + ie iθ (dτ [1] ∧ dτ )K β 2 ,β 3 a (τ, q) ] + 1 2 [ −ie iθ (dτ [1] ∧ dτ )K β 0 ,β 1 a (τ, q) + (dτ [2] ∧ dτ )K β 2 ,β 3 a (τ, q) ]j Corollary 3.11. Let α = (α 0 , α 1 , α 2 , α 3 ), β = (β 0 , β 1 , β 2 , β 3 ) ∈ C(i) 4 with 0 < ℜα ℓ , ℜβ ℓ < 1 for ℓ = 0, 1, 2, 3 and f, g ∈ AC 1 (J b a , C(i)).…”