Equation 13.13.31D1F48E296303

\begin{equation} a\in \left( 1, \left(\frac{\int _ X \theta _{\psi }^ n}{\int _ X \theta _{\psi }^ n-\int _ X \theta _{\varphi }^ n}\right)^{1/n} \right){}^{\href{#sgpt-a0000014934}{2}}, \end{equation}