Equation 18.34.10F73FC2DA9CA6

\begin{equation} \mathrm{d}\sigma _{t,x}(y) =\frac{|k_{v_ t,x}(y)|_{h^ m}^2\mathrm{e}^{-mv_ t(y)}}{\| k_{v_ t,x}\| _{m,v_ t,\nu }^2}\, \mathrm{d}\nu (y) \end{equation}