Nonlinear Schrodinger equation with Coulomb potential
Nonlinear Schrodinger equation with Coulomb potential
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具有库仑势的非线性薛定谔方程
DOI:
10.1007/s10473-022-0606-x
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发表时间:
2022
影响因子:
1
通讯作者:
zheng jiqiang
中科院分区:
文献类型:
--
作者:
miao changxing;zhang junyong;zheng jiqiang
In this paper, we study the Cauchy problem for the nonlinear Schrödinger equations with Coulomb potential \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\rm{i}}{\partial _t}u + \Delta u + {K \over {\left| x \right|}}u = \lambda {\left| u \right|^{p - 1}}u$$\end{document} with \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$1 < p \le 5\,\,{\rm{on}}\,\,{\mathbb{R}^3}$$\end{document}. Our results reveal the influence of the long range potentialK∣x∣−1on the existence and scattering theories for nonlinear Schrödinger equations. In particular, we prove the global existence when the Coulomb potential is attractive, i.e., whenK> 0, and the scattering theory when the Coulomb potential is repulsive, i.e., whenK≤ 0. The argument is based on the newly-established interaction Morawetz-type inequalities and the equivalence of Sobolev norms for the Laplacian operator with the Coulomb potential.