Fig. 3

The 3D, contour and 2D (when y = 10) graphs for the perturbed lump-type kink soliton solution \(\psi _{1, 8 }\) stated in (24), are plotted for \(\lambda := 8, \mu := 10, \nu := 2, \varrho := 0.20E^{-1},\) \(C:= 1, t:= 1, \omega _{0}:= 4, \delta _{0}:= 3, k_{1}:= 1\).