Relaxation Oscillations and Dynamical Properties in Two Time-Delay Slow-Fast Modified Leslie-Gower Models

Figure 2

Illustration for the relaxation oscillations of system (9). The critical manifold contains repelling part and attracting part . The dashed black line is the predator isocline, the red dot is the fold point , the solid blue line is the slow-fast cycle , the double and single arrows are fast and slow flows, and the solid red is the attracting relaxation oscillation .