“…Moreover, in order to analyze the dynamical behavior of the novel dual-mode solution (20), the 3D and 2D graphics are presented in Figure 3, considering the particular values of the free parameters as a 2 = 0.1, d = 3, k = 2, α = 0.2, for various values of phase velocity s. Subgraphs (a 1 -a 3 ) present the physical structure of the dual waves G 3 (x, t) and G 4 (x, t) upon increasing s (s = 1, 3, 5), which are, respectively, associated with the values of β = 0.881, 0.971, 0.997. The motion described by (20) looks like singular dual kink waves, as is clearly shown in subgraphs (b 1 -b 3 ), representing the 2D plots of (a 1 -a 3 ) for x = 0. The collision of the waves occurs for the phase velocity s = 5.…”