Fig. 5

Double-periodic soliton (30) with different parameters of (The first row): Case (19) \(y=-1/2, z=1/3\), (The second row): Case (19) \(x=1/4, z=1/5\) and (The third row): Case (19) \(x=1/6, y=1/5\).
Double-periodic soliton (30) with different parameters of (The first row): Case (19) \(y=-1/2, z=1/3\), (The second row): Case (19) \(x=1/4, z=1/5\) and (The third row): Case (19) \(x=1/6, y=1/5\).