Exact Periodic Solutions of the Nonintegrable Kawahara Equation

Figure 1

Discrete values of the spatial displacements 𝑎_𝑚(𝑞) for a mean value of the perturbation parameter 𝑞=𝑒^−𝜀𝜋, 𝜀=1, 𝑘=1, and 𝑚=0,1,2,….