数学物理学报 ›› 2026, Vol. 46 ›› Issue (4): 1443-1457.

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周期位势下 Schrödinger-Bopp-Podolsky 系统非平凡解的存在性——献给邓引斌教授 70 寿辰

蔡紫杏(), 王莉*(), 杨雨晨()   

  1. 华东交通大学理学院 南昌 330013
  • 收稿日期:2025-12-29 修回日期:2026-02-05 出版日期:2026-08-26 发布日期:2026-06-10
  • 通讯作者: 王莉 E-mail:caizixing1229@163.com;wangli.423@163.com;yangyuchen0821@163.com
  • 作者简介:蔡紫杏,E-mail: caizixing1229@163.com;
    杨雨晨,E-mail: yangyuchen0821@163.com
  • 基金资助:
    国家自然科学基金(12161038);江西省自然科学基金(20232BAB201009);江西省教育厅科学技术项目(GJJ2400901)

Existence of Nontrivial Solutions for a Schrödinger-Bopp-Podolsky System in $\mathbf{R}^3$ with Periodic Potentials

Zixing Cai(), Li Wang*(), Yuchen Yang()   

  1. School of Science, East China Jiaotong University, Nanchang 330013
  • Received:2025-12-29 Revised:2026-02-05 Online:2026-08-26 Published:2026-06-10
  • Contact: Li Wang E-mail:caizixing1229@163.com;wangli.423@163.com;yangyuchen0821@163.com
  • Supported by:
    NSFC(12161038);Jiangxi Provincial Natural Science Foundation(20232BAB201009);Science and Technology Project of Education Department of Jiangxi Province(GJJ2400901)

摘要:

该文研究如下定义在 $\mathbf{R}^3$ 上的 Schrödinger-Bopp-Podolsky 系统

$\left\{\begin{aligned}&-\left( a+b\int_{\mathbf{R}^3}|\nabla u|^2\,\mathrm{d}x\right) \Delta u + V(x)u+\lambda\phi u = f(x,u), && x \in \mathbf{R}^3, \\&-\Delta \phi+d^2\Delta ^{2}\phi = \lambda u^2, && x \in \mathbf{R}^3,\end{aligned}\right.$

其中 $a,$ $b>0$ 为常数, $\lambda,$ $d$ 为正参数; 位势函数 $V(x)$ 为连续的周期位势, 并具有正下界; 非线性项 $f(x,t)\in C(\mathbf{R}^3\times\mathbf{R},\mathbf{R})$ 是关于 $x$ 的周期函数. 在 $f$ 满足一定条件下, 借助变分方法与截断技巧, 作者在固定 $d$ 且 $\lambda$ 充分小时获得一个非平凡解, 并进一步给出解的渐近行为, 所得结果推广并改进了近期相关文献中的结论.

关键词: Schr?dinger-Bopp-Podolsky 系统, 周期位势, 截断技巧

Abstract:

In this paper, we investigate the following Schrödinger-Bopp-Podolsky system in $\mathbf{R}^3$:

$\left\{\begin{aligned}&-\left( a+b\int_{\mathbf{R}^3}|\nabla u|^2\,\mathrm{d}x\right) \Delta u + V(x)u+\lambda\phi u = f(x,u), && x \in \mathbf{R}^3, \\&-\Delta \phi+d^2\Delta ^{2}\phi = \lambda u^2, && x \in \mathbf{R}^3,\end{aligned}\right.$

where $a,$ $b>0$ are constants, $\lambda,$ $d$ are positive parameters, $V(x)$ is a continuous and periodic potential function with positive infimum, $f(x,t)\in C(\mathbf{R}^3\times\mathbf{R},\mathbf{R})$ is periodic in $x.$ Under $f(x,t)$ satisfying some superquadratic growth conditions with respect to $t,$ by combining variational methods with a truncation technique, we obtain one nontrivial solution for $\lambda$ small enough and $ d$ fixed. The asymptotic behavior of this solution is also discussed in this paper. Our results generalize and improve some recent results in the literature.

Key words: Schr?dinger-Bopp-Podolsky system, periodic potential, truncation technique

中图分类号: 

  • O175.23