Riemann-Hilbert Approach to Nonlinear Schrödinger Equation with Nonvanishing Boundary Conditions: <i>N</i> Pairs of Higher-Order Poles Case

Jing Shen, Huan Liu

Communications on Applied Mathematics and Computation . 2026, (1): 177 -194 . DOI: 10.1007/s42967-024-00418-6