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临界-凹Kirchhoff方程正解的乘法与渐进行为

Multiplicity and asymptotics of positive solutions for critical-concave Kirchhoff equation

Southwest University(西南大学);Guizhou University(贵州大学);Northwest Normal University(西北师范大学)

Zhi-Yun Tang, Gui-Dong Li, Yong-Yong Li

AI总结:

本文研究临界Kirchhoff方程在凹扰动下的正解乘法及渐进行为,利用约束极小化方法、山峰定理和集中紧致原理,证明小λ下的正解存在性,并分析b和λ趋近于0时的渐近行为。

摘要:

本文聚焦于带有凹扰动的临界Kirchhoff方程:\begin{align*}\begin{cases}\displaystyle -\Big(a+b\int_Ω|\nabla u|^2dx\Big)Δu=|u|^4u+λ|u|^{q-2}u\ \ &\mbox{in}\ Ω,\\ \displaystyle u=0\ \ &\mbox{on}\ \partialΩ,\\ \end{cases}\end{align*}其中$Ω$是$\mathbb{R}^3$中的光滑有界域,$a,b,λ>0$且$1<q<2$。通过约束极小化方法、山峰定理和集中紧致原理,验证了对于足够小的$λ>0$,正解的乘法性。此外,分析了当$b\rightarrow0$和$λ\rightarrow0$时正解的渐近行为。本文是[Kirchhoff方程]工作的一个补充,值得注意的是,本文不要求$b>0$足够小,这在现有文献中被用来对山峰水平进行精细化估计。

英文摘要:

This paper focuses on the critical Kirchhoff equation with concave perturbation \begin{align*} \begin{cases} \displaystyle -\Big(a+b\int_Ω|\nabla u|^2dx\Big)Δu=|u|^4u+λ|u|^{q-2}u\ \ &\mbox{in}\ Ω, \displaystyle u=0\ \ &\mbox{on}\ \partialΩ, \end{cases} \end{align*} where $Ω$ is a smooth bounded domain in $\mathbb{R}^3$, $a,b,λ>0$ and $1<q<2$. By the constrained minimization methods, the mountain pass theorem and the concentration-compactness principle, we verify the multiplicity of positive solutions for $λ>0$ small enough. Moreover, we analyse the asymptotic behaviour of positive solutions as $b\rightarrow0$ and $λ\rightarrow0$, respectively. This work is a counterpart of [A. Ambrosetti et al., J.~Funct.~Anal. 1994] for the Kirchhoff equation. It is noteworthy that we don't require that $b>0$ is small enough here, which is imposed in the existing literatures to make refined estimates for the mountain pass level.

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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