Multisoliton solutions with even numbers and its generated solutions for nonlocal Fokas-Lenells equation

Rong Fan,Zhao Zhang,Biao Li

Figure 3. (a) An interaction ${q}_{2-2-{\rm{pos}}}$ between two second-order smooth positons with parameters ${\lambda }_{1}=2{\rm{i}},{\lambda }_{2}=2{\rm{i}},{\lambda }_{3}={\rm{i}},{\lambda }_{4}={\rm{i}},{a}=2{\rm{i}},{b}=1;$ (b) density plot of (a); (c) an interaction ${q}_{3-3-{\rm{pos}}}$ between two third-order smooth positons with parameters ${\lambda }_{1}=2{\rm{i}},{\lambda }_{2}=2{\rm{i}},{\lambda }_{3}=2{\rm{i}},{\lambda }_{4}={\rm{i}},{\lambda }_{5}={\rm{i}},{\lambda }_{6}={\rm{i}},{a}=2{\rm{i}},{b}=1$.