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arXiv 2101.07574math.AP
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拟线性薛定谔方程:基态与无穷多规范化解

Quasilinear Schrödinger equations: ground state and infinitely many normalized solutions

Houwang Li, Wenming Zou

AI总结:

该文研究带给定质量约束的拟线性薛定谔方程,用摄动法、指标理论分别得到质量超临界情形下基态规范化解、无穷多规范化解的存在性,还得到质量临界情形的新存在结果及基态解的集中行为。

摘要:

本文研究如下拟线性薛定谔方程的规范化解:在ℝ^N中满足-Δu - uΔu² + λu = |u|^{p-2}u,且给定质量∫_{ℝ^N} u² = a²。我们首先研究此前未被探讨过的质量超临界情形p > 4 + 4/N,通过摄动方法证明了基态规范化解的存在性,并运用指标理论得到无穷多规范化解的存在性。随后我们研究质量临界情形即p = 4 + 4/N,得到了一些新的存在性结果。此外,我们还观察到基态解的一种集中行为。

英文摘要:

In the present paper, we study the normalized solutions for the following quasilinear Schrödinger equations: $$-Δu-uΔu^2+λu=|u|^{p-2}u \quad \text{in}~\mathbb R^N,$$ with prescribed mass $$\int_{\mathbb R^N} u^2=a^2.$$ We first consider the mass-supercritical case $p>4+\frac{4}{N}$, which has not been studied before. By using a perturbation method, we succeed to prove the existence of ground state normalized solutions, and by applying the index theory, we obtain the existence of infinitely many normalized solutions. Then we turn to study the mass-critical case, i.e., $p=4+\frac{4}{N}$, and obtain some new existence results. Moreover, we also observe a concentration behavior of the ground state solutions.

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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