Exact Traveling Wave Solutions for a Nonlinear Evolution Equation of Generalized Tzitzéica-Dodd-Bullough-Mikhailov Type

Figure 1

The phase portraits of solutions (21) and (22) for 𝑚=4, 𝛼=3, 𝛽=−1, 𝑐=2, ℎ=9, 𝑡=0.1.

(a) Smooth solitary wave

(b) Unboundary wave