\[\mathbf{A}_{\nu}\left(z\right)\sim\frac{1}{\pi z}\sum_{k=0}^{\infty}\frac{F_{k%
}(\nu)}{z^{2k}}-\frac{\nu}{\pi z^{2}}\sum_{k=0}^{\infty}\frac{G_{k}(\nu)}{z^{2%
k}}.\]