Collision operator  $\vec{C}$:
\begin{equation*}
\vec{C}\left(\vec{f} \right) = \omega\left(\matr{M}^{-1}\vec{\mu}^{(eq)} -\vec{f} \right),
\end{equation*}
$\omega \in \left(0,2\right).$

%\input{d2q5/d2q5_srt_matA}
