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arXiv 2601.16601math.AP
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不定耦合非线性薛定谔系统的基态

Ground state of indefinite coupled nonlinear Schrödinger systems

Capital Normal University(首都师范大学)

Ruijin Xu, Jiabao Su, Rushun Tian

AI总结:

本文研究了不定耦合非线性薛定谔系统基态解的存在性及临界能量水平的特性。

摘要:

本文研究以下耦合非线性薛定谔系统(P)的基态解:在Ω内,-Δu₁-τ₁u₁=μ₁u₁³+βu₁u₂²,-Δu₂-τ₂u₂=μ₂u₂³+βu₁²u₂,其中μ₁, μ₂>0,β>0,Ω⊂R^N(N≤3)是具有光滑边界的有界域。我们关注不定情况,即τ₁, τ₂大于或等于-Δ的主特征值。通过精细的变分论证,我们获得了(P)的基态解的存在性,并在某些范围内提供了耦合参数β的临界能量水平的信息。

英文摘要:

In this paper, we study the ground state solutions of the following coupled nonlinear Schrödinger system (P) $-Δu_1-τ_1 u_1 =μ_1u_1^3+βu_1u_2^2$, $ -Δu_2-τ_2 u_2 =μ_2u_2^3+βu_1^2u_2$ in $Ω$, $u_1=u_2=0$ on $\partialΩ$, where $μ_1, μ_2>0$, $β>0$ and $Ω\subset \mathbb{R}^N (N\le3)$ is a bounded domain with smooth boundary. We are concerned with the indefinite case, i.e., $τ_1, τ_2$ are greater than or equal to the principal eigenvalue of $-Δ$ with the Dirichlet boundary datum. By delicate variational arguments, we obtain the existence of ground state solution to $(P)$, and also provide information on critical energy levels for coupling parameter $β$ in some ranges.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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