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Figure 5 | Advances in Difference Equations

Figure 5

From: Stability analysis for a time-delayed nonlinear predator–prey model

Figure 5

Graph of function \(S_{0}\) (a). The positive equilibrium \(E^{*}\) of system (1.2) is always unstable when \(\tau=1\) (b), \(\tau=2.56\), (c) or \(\tau=10\) (d). The other parameter values are \(r=0.11\), \(K=10\), \(\beta=0.2\), \(a=0.12\), \(h_{1}=0.01\), \(h_{2}=0.01\), \(m=0\), \(\theta=6\), and \(\varepsilon=0.7\). Here, the initial condition is \(x_{0}=8\), \(y_{0}=5\)

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