Riemann-Hilbert approach and N double-pole solutions for a nonlinear Schrödinger-type equation
Guofei Zhang(张国飞), Jingsong He(贺劲松), and Yi Cheng(程艺)
Chin. Phys. B . 2022, (11): 110201 -110201 .  DOI: 10.1088/1674-1056/ac7a1b