Equation 10.9.2D00D33B0EA52

\begin{equation} \omega _{u_1}\wedge \cdots \wedge \omega _{u_ p} =\sum _{J\subset \{ 1,\ldots ,p\} }\Bigl (\bigwedge _{l\in J}\mathrm{dd}^{\mathrm{c}}(u_ l+q)\Bigr )\wedge \sigma ^{p-|J|}. \end{equation}