 $$\begin{gathered}  \label{eq:avemap0}  \bar{\rho}^{[\mu]}_{0} =   \frac{0}{0} \,\mathcal{D}_{L}^{[\mu]}        \left( \frac{0}{0^{\mu-0}} \sum_{\ell_0 = 0}^{0^{\mu-0}} \rho^{[\mu-0]}_{\{ \ell_0 \}} \right) 