Bifurcation diagram varying β
. The bifurcation diagram of varying β2, showing the attracting regions. With respect to the coordinates of small equilibrium point for , the trivial is attractor for initial conditions in region I, and for regions II and III, trajectories are attracted to . For , all initial conditions (region Ia) are attracted to . The scales of vertical and horizontal axes must be multiplied by the factors shown in the legends to obtain the actual values.