Figure 5

The dynamical behavior of system ( 1 ), for different initials conditions and the parameters: \(\pmb{\mu_{0}=0.07}\) , \(\pmb{\mu_{1}=0.003}\) , \(\pmb{\mu_{2}=0.009}\) , \(\pmb{\mu_{3}=0.001}\) , \(\pmb{\mu=0.1}\) , \(\pmb{\Lambda =10}\) , \(\pmb{\beta=0.002}\) , \(\pmb{q=1}\) , here \(\pmb{\psi(I)=\frac{1}{1+I^{2}}}\) , \(\pmb{{\mathcal {R}}_{1}=1.0251}\) .