Fig. 7

The 3D, contour and 2D (when x = 1) graphs for the twinning kink soliton solution \(\psi _{2, 8 }\) stated in (35), are plotted for \(\lambda := 3, \mu := 13, \nu := 12, \varrho := 0.6E^{-1},\) \(C:= 0.51E^{-2}, t:= 30, \omega _{0}:= 1, \omega _{1}:= 5, k_{1}:= 10\).