1. Introduction
2. Higher-order smooth positon
For N = 2, if some of the parameters in equation (
From equation (
Figure 1. A first-order smooth positon generated by equation ( |
For N = 3, if some of the parameters in equation (
Figure 2. A second-order smooth positon generated by equation ( |
For N = 4, if some of the parameters in equation (
If some of the parameters in equation (
Figure 3. A third-order smooth positon generated by equation ( |
Figure 4. (a) A second-order breather positon derived with β = 2, λ1 = 1 + i, λ3 = 1 − i; (b) A third-order breather positon derived with β = 2, λ1 = 1 + i, λ4 = 1 − i. |
3. Higher-order breather positons
For N = 4, if some of the parameters in equation (
For N = 2n, if some of the parameters in equation (