Research Article

Reactive-Diffusive-Advective Traveling Waves in a Family of Degenerate Nonlinear Equations

Figure 7

Phase portrait of (18) for fixed and . In (a)–(c) there are no heteroclinic trajectories. (d) shows the existence of a saddle-saddle heteroclinic trajectory for . (e)–(g), for the indicated value of , show a saddle saddle-node connection. Here . Red points are equilibrium points, green curves are nullclines, and blue curves are trajectories.
(a)
(b)
(c)
(d)
(e)
(f)
(g)