Figure 21

Dynamical trajectories using γ near but greater than ${\gamma }_2^c$Dynamical trajectories of the system (1) considering the values of parameters given in Table 2, except γ near but greater than ${\gamma }_2^c$. When T(0) = 0.42 (${\bar{Q}}^0$ is attracting for T(0) = 0.41), limit cycle disappears for γ = 2.520 × 10^-2. Being ${\bar{Q}}_{>}^{*}$ unstable, the dynamical trajectories go to trivial ${\bar{Q}}^0$ after one oscillation (a). However, the number of oscillations increases if γ is very close to ${\gamma }_2^c$. For γ = 2.519675 × 10^-2 and T(0) = 0.42, ${\bar{Q}}^0$ is attained after three oscillations: C and E (b), T (c), P and A (d). The scales of vertical and horizontal axes must be multiplied by the factors shown in the legends to obtain the actual values.