\[\Pi\left(\phi,\alpha^{2},ik\right)=(\kappa^{\prime}/\alpha_{1}^{2})\left(%
\kappa^{2}F\left(\theta,\kappa\right)+{\kappa^{\prime}}^{2}\alpha^{2}\Pi\left(%
\theta,\alpha_{1}^{2},\kappa\right)\right),\]