Table 1 Maximal allowable upper bounds of \(\tau _{1}\) for different parameter D

$D=\left[\begin{array}{cc}-0.1& 1.09\\ -0.02& -1.0\end{array}\right]$

19.6223

13.2923

$D=\left[\begin{array}{cc}-3.0& 3.1\\ -29.0& 1.0\end{array}\right]$

14.9681

14.9743

$D=\left[\begin{array}{cc}-0.6& 8\\ 0.0& -2.0\end{array}\right]$

12.2443

11.7322