Fig. 4

The 3D, contour and 2D (when x = 1) graphs for the lump-type kink soliton solution \(\psi _{1, 9 }\) stated in (25), are plotted for \(\lambda := 1, \mu := 4, \nu := 4, \varrho := 0.50E^{-1},\) \(C:= 0.5, t:= 5, \omega _{0}:= 0.5, \delta _{0}:= 5, k_{1}:= 2\).