Bright, periodic, compacton and bell-shape soliton solutions of the extended QZK and (3 + 1)-dimensional ZK equations
M Ali Akbar,Md Abdul Kayum,M S Osman
Figure 15. The 3D and 2D graphics for $s\left(t\right)=\lambda {\rm{t}}$ of the particular solution (76) with the particular values $l=1,$ $m=7,$ $n=5,$ $\alpha =3,$ $\beta =0.5,$ $\gamma =1.5,$ $\delta =1$ and $\lambda =1.$