Equation 11.37.2803909FECEC0

\begin{equation} B_\varphi (F)=\log m_\varphi -\log \int _ X\mathrm{e}^ F\, \mathrm{d}V, \qquad \mathcal A_\varphi (F) =\left\{ \frac{\mathrm{e}^ F\, \mathrm{d}V}{\int _ X\mathrm{e}^ F\, \mathrm{d}V}\right\} . \end{equation}