Fig. 7

Phase portraits of the system’s bifurcations are depicted under different conditions for \(\mu _{1}\) and \(\mu _{2}\), using various parameter values for Case 5.1 and Case 5.2.
Phase portraits of the system’s bifurcations are depicted under different conditions for \(\mu _{1}\) and \(\mu _{2}\), using various parameter values for Case 5.1 and Case 5.2.