Figure 17

The phase plot of the states \(\pmb{x_{2}}\) , \(\pmb{y_{1}}\) , and \(\pmb{y_{2}}\) \(\pmb{x_{1}}\) , \(\pmb{x_{2}}\) , \(\pmb{y_{1}}\) , \(\pmb{y_{2}}\) for \(\pmb{\tau_{2}=8.7325<\tau _{2}^{*}=10.3472}\) and \(\pmb{\tau_{1*}=1.05\in(0, \tau_{10})}\) .