Equation 16.5.425B35DF529607

\begin{equation} \theta _{\gamma _ j}^ n=\mathrm{e}^{\gamma _ j}\mu _ j=\mathrm{e}^{\gamma _ j-\varphi _ j}\theta _{\varphi }^ n+\mathrm{e}^{\gamma _ j-\psi _ j}\theta _{\psi }^ n. \end{equation}