A State-Dependent Impulsive Nonlinear System with Ratio-Dependent Action Threshold for Investigating the Pest-Natural Enemy Model

Figure 1

Detailed diagrams describing the impulsive along with phase sets where (a) and . In sub-plot (a), shows the tangent trajectory to the curve and touches the curve at . In sub-plot (b), touches the curve at two points and , and tangent to the curve at point .

(a)

(b)