Equation 23.2.19A1632B661AC9

\begin{equation} \mathrm{d}_\lambda =\mathrm{e}^ f\mathrm{d}\mathrm{e}^{-f}, \qquad \mathrm d^{\mathrm c}_\lambda =\mathrm{e}^ f\mathrm d^{\mathrm c}\mathrm{e}^{-f}, \qquad D_\lambda =\mathrm{e}^ f\mathrm{dd}^{\mathrm{c}}\mathrm{e}^{-f}. \end{equation}