Figure 2From: Dynamics analysis of a stochastic non-autonomous one-predator–two-prey system with Beddington–DeAngelis functional response and impulsive perturbationsStochastic permanence of the three population of system (2). (a) is the time sequence diagram and (b) the phase portrait of system (2)\(.(x_{1}(0), x_{2}(0), x_{3}(0))=(0.5,0.5,0.5)\), \(\sigma ^{2}_{1}(t)=\sigma ^{2}_{2}(t)=\sigma ^{2}_{3}(t)=0.1+0.04\sin t\)Back to article page