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On the well-posedness and stability for the fourth-order Schrödinger equation with nonlinear derivative term

Authors :
Kelin Li
Huafei Di
Source :
Discrete & Continuous Dynamical Systems - S. 14:4293
Publication Year :
2021
Publisher :
American Institute of Mathematical Sciences (AIMS), 2021.

Abstract

Considered herein is the well-posedness and stability for the Cauchy problem of the fourth-order Schrödinger equation with nonlinear derivative term \begin{document}$ iu_{t}+\Delta^2 u-u\Delta|u|^2+\lambda|u|^pu = 0 $\end{document}, where \begin{document}$ t\in\mathbb{R} $\end{document} and \begin{document}$ x\in \mathbb{R}^n $\end{document}. First of all, for initial data \begin{document}$ \varphi(x)\in H^2(\mathbb{R}^{n}) $\end{document}, we establish the local well-poseness and finite time blow-up criterion of the solutions, and give a rough estimate of blow-up time and blow-up rate. Secondly, under a smallness assumption on the initial value \begin{document}$ \varphi(x) $\end{document}, we demonstrate the global well-posedness of the solutions by applying two different methods, and at the same time give the scattering behavior of the solutions. Finally, based on founded a priori estimates, we investigate the stability of solutions by the short-time and long-time perturbation theories, respectively.

Details

ISSN :
19371179 and 19371632
Volume :
14
Database :
OpenAIRE
Journal :
Discrete & Continuous Dynamical Systems - S
Accession number :
edsair.doi...........a0f9aa28f6cda5b1b0bfe7ae4d3cf946
Full Text :
https://doi.org/10.3934/dcdss.2021122