Figure 3
From: Nonlocal-derivative NLS equations and group-invariant soliton solutions
Interaction of the two-soliton solution for the nonlocal four-place DNLS equation (26). Pictures (a1)–(a4) show the interaction of the two-soliton for \(k_{1R}=1\),\(k_{1I}=1\). Pictures (b1)–(b4) show the interaction of the two-soliton for \(k_{1R}=3\),\(k_{1I}=1\). Pictures (c1)–(c4) show the interaction of the two-soliton for \(k_{1R}=1\), \(k_{1I}=3\)