TY - JOUR T1 - The Riemann-Hilbert Approach and $N$-Soliton Solutions of a Four-Component Nonlinear Schrödinger Equation AU - Zhou , Xin-Mei AU - Tian , Shou-Fu AU - Yang , Jin-Jie AU - Mao , Jin-Jin JO - East Asian Journal on Applied Mathematics VL - 1 SP - 143 EP - 163 PY - 2020 DA - 2020/11 SN - 11 DO - http://doi.org/10.4208/eajam.100620.170920 UR - https://global-sci.org/intro/article_detail/eajam/18417.html KW - Four-component nonlinear Schrödinger equation, Riemann-Hilbert approach, $N$-soliton solutions. AB -
A four-component nonlinear Schrödinger equation associated with a 5×5 Lax pair is investigated. A spectral problem is analysed and the Jost functions are used in order to derive a Riemann-Hilbert problem connected with the equation under consideration. $N$-soliton solutions of the equation are obtained by solving the Riemann-Hilbert problem without reflection. For $N = 1$ and $N = 2$, the local structure and dynamic behavior of some special solutions are analysed by invoking their graphic representations.