Figure 3
From: Studies on the basic reproduction number in stochastic epidemic models with random perturbations
Stability modeled using the parameters \(N=1\), \(\beta = 0.8\), \(\sigma = 0.3\), \(\mu = 0.08\), \(\eta = 0.09\), and (a) \(\gamma = 0.85\) and \(\upsilon = 0.7\) (right), (b) \(\gamma = 0.75\) and \(\upsilon = 0.7\) (left). The initial condition is \(( N,0, 0, 0 ) = ( 1,0, 0, 0 )\) for all of them