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arXiv · 2401.06458

Asymptotic behavior for a new higher-order nonlinear Schr\"{o}dinger equation

Hongyi Zhang·Yufeng Zhang·Binlu Feng
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Abstract

We investigate the Cauchy problem of a new higher-order nonlinear Schr\"{o}dinger equation (NHNSE) with weighted Sobolev initial data which is derived by ourselves. By applying $\bar{\partial}$-steepest descent method, we derive the long-time asymptotics of the NHNSE. Explicit steps are as follows: first of all, based on the spectral analysis of a Lax pair and scattering matrice, the solution of the NHNSE is exhibted through solving the corresponding Riemann-Hilbert problem. Secondly, by applying some properties of the Riemann-Hilbert problem, we obtain the long-time asymptotics of the solution to the NHNSE. As we know that the properties of the NHNSE presented in the paper have not been found in any scholar journals.

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Hongyi Zhang, Yufeng Zhang, Binlu Feng. 2024-01-12. Asymptotic behavior for a new higher-order nonlinear Schr\"{o}dinger equation. https://arxiv.org/abs/2401.06458

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