Figure 1

The trajectories of the real and imaginary parts of \({z}_{k},\,k=1,\,2\) for Example 3.1 with the initial condition \(\vartheta _1\) and various values of \(\gamma\) and \(\mu .\).
The trajectories of the real and imaginary parts of \({z}_{k},\,k=1,\,2\) for Example 3.1 with the initial condition \(\vartheta _1\) and various values of \(\gamma\) and \(\mu .\).