update: auto commit

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2026-04-10 02:00:21 -04:00
parent 3f4ee66740
commit c519424db3
+2 -4
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@@ -822,15 +822,13 @@ $}
$}
\]
where $c_1$, $c_2$, $c_3$ and $c_4$ are positive constants that large enough (the lower bound can be calculated). Thus we have constraint damping.
\end{frame}
\vspace{0.2cm}
\begin{frame}{Searching for a first order Z4c}{old workflow: by hand}
{\color{red} \textbf{Unfortunately, this naive system is not even weakly hyperbolic!}}
\vspace{0.2cm}
We have to add some constraint terms that equals to zero, while contributes to the principal symbol, until the principal symbol matrix is diagonalizable with real eigenvalues.
\end{frame}
\begin{frame}{Searching for a first order Z4c}{old workflow: by hand}
Available terms to add:
\begin{gather*}
\constraintA{_i} \qc \constraintB{^i_j} \qc \constraintC*{_i} \qc \constraintD*{_i_j_k},\\