Figure 4From: Dynamics of bright and dark multi-soliton solutions for two higher-order Toda lattice equations for nonlinear waves(a1)–(c1) Overtaking elastic interactions of dark three-soliton solution \(\widetilde{u}_{n}\) in (45). (a2)–(c2) Overtaking elastic interactions of bright four-soliton solution \(\widetilde{v}_{n}\) in (45) with the same parameters as in (a1)–(c1). The same parameters as Fig. 3 except that \(\lambda _{4}=-1\)Back to article page