Table 3.4.
No interior equilibrium and the related global dynamics for the systems (2.7)–(2.8) and (2.9)–(2.10)
| Cases | The system (2.7)–(2.8) | The system (2.9)–(2.10) | ||
|---|---|---|---|---|
| No interior equilibrium | Case (1): ; Case (2): ; Case (3): . | Case (1): ; Case (2): ; Case (3): , i = 1, 2; Case (4): , θ2 < N2 < K2 | ||
| Disease-free dynamics | ||||
| Susceptible-free dynamics | . | and Conditions of Case (2) or Case (3) or Case (4) | ||
| Disease-driven extinction | and . | |||
| Permanence | N(0) ∈ (θ2, K2) and . | N(0) ∈ (θ2, K2) and . |