Formula_4627

\[\left.\begin{array}{l}\partial\left(\omega_{1}-\omega_{0}\right) / \partial u=2 a \sin \left[\left(\omega_{1}+\omega_{0}\right) / 2\right], \\\partial\left(\omega_{1}+\omega_{0}\right) / \partial v=2 a^{-1} \sin \left[\left(\omega_{1}-\omega_{0}\right) / 2\right]\end{array}\right\}\]