Equation 20.3.60D8F334251727

\begin{equation} \mathrm{MA}^{\mathrm{ext}}_\Omega (a) =(k+1)\, \mathrm{MA}^{\mathrm{ext}}_{A\eta }(w) \otimes \mathrm{MA}^{\mathrm{ext}}_{\omega _ Z}(h). \end{equation}