Let \(A\) be an \(n\times n\) real matrix whose eigenvalues \(\lambda _i\) satisfy \(\Re \lambda _i<0\) for all \(i=1,\ldots ,n\). Answer the questions about the linear system \begin{equation} \begin {cases} \dfrac {dx}{dt}=Ax,\\ x(0)=x_0. \end {cases} \tag {1} \end{equation}
- Define: \(V(x)\) is a Liapunov Function.
- Find a Liapunov Function.
- Define: \(z(t)=0\) is an Asymptotically Stable solution for (1).
- Using your Liapunov Function, show that \(z(t)=0\) is an asymptotically stable solution.