Figure 16

Simulation results for the 3-gene network under drug perturbation with different initial conditions: (a–c) with initial condition ( x ₁ ( 0 )  = 20 ), (d–f) with initial condition ( x ₁ ( 0 )  = 40 ). Other parameter settings are: $x_2\left(0\right)=0.7,x_3\left(0\right)=0.5,\tau =8,u\left(\mathrm{k\tau }\right)=24,q_1^u=0.21,{\beta }_1={\beta }_2=1,{\beta }_3=4,{\gamma }_2=1,{\gamma }_3=1,{\theta }_1^2=10,{\theta }_2^1=2,{\theta }_1^3=21,{\theta }_2^3=10,{\eta }_1=0.1,{\lambda }_d=0.5$.