Figure 1From: New conditions on the existence and stability of positive periodic solutions for n-species Lotka-Volterra systems with deviating argumentsThe phase portrait and time series of system ( 3.5 ). (a) The 2π-period solution of system (3.5) in the ( x 1 , x 2 ) plane. (b), (c) Time series of x 1 in (t, x 1 ) plane. (d), (e) Time series of x 2 in the (t, x 2 ) plane.Back to article page