具有奇异Trudinger-Moser增长的非齐次Kirchhoff型椭圆方程组
On a nonhomogeneous Kirchhoff type elliptic system with the singular Trudinger-Moser growth
摘要：
本文研究了一类Kirchhoff型椭圆方程组\begin{eqnarray*} \left\{ \arraycolsep=1.5pt \begin{array}{ll} -m\left(\sum^k_{j=1}\|u_j\|^2\right)Δu_i=\frac{f_i(x,u_1,\ldots,u_k)}{|x|^β}+\varepsilon h_i(x),\ \ & \mbox{in}\ \ Ω, \ \ i=1,\ldots,k ,\\[2mm] u_1=u_2=\cdots=u_k=0,\ \ & \mbox{on}\ \ \partialΩ, \end{array} \right. \end{eqnarray*}的多解性，其中$Ω$是$\mathbb{R}^2$中包含光滑边界原点的有界区域，$β\in [0,2)$，$m$是Kirchhoff型函数，$\|u_j\|^2=\int_Ω|\nabla u_j|^2dx$，当$|s|\rightarrow \infty$对某个$β>0$时，$f_i$表现为$e^{βs^2}$，并且存在$C^1$函数$F: Ω\times\mathbb{R}^k\to \mathbb{R}$使得$\left(\frac{\partial F}{\partial u_1},\ldots,\frac{\partial F}{\partial u_k}\right)=\left(f_1,\ldots,f_k\right)$，$h_i\in \left(\big(H^1_0(Ω)\big)^*,\|\cdot\|_*\right)$ .当$\varepsilon>0$较小时，利用变分方法和适当的奇异Trudinger-Moser不等式，我们建立了上述系统多解的充分条件.
英文摘要：
The aim of this paper is to study the multiplicity of solutions for the following Kirchhoff type elliptic systems \begin{eqnarray*} \left\{ \arraycolsep=1.5pt \begin{array}{ll} -m\left(\sum^k_{j=1}\|u_j\|^2\right)Δu_i=\frac{f_i(x,u_1,\ldots,u_k)}{|x|^β}+\varepsilon h_i(x),\ \ & \mbox{in}\ \ Ω, \ \ i=1,\ldots,k ,\\[2mm] u_1=u_2=\cdots=u_k=0,\ \ & \mbox{on}\ \ \partialΩ, \end{array} \right. \end{eqnarray*} where $Ω$ is a bounded domain in $\mathbb{R}^2$ containing the origin with smooth boundary, $β\in [0,2)$, $m$ is a Kirchhoff type function, $\|u_j\|^2=\int_Ω|\nabla u_j|^2dx$, $f_i$ behaves like $e^{βs^2}$ when $|s|\rightarrow \infty$ for some $β>0$, and there is $C^1$ function $F: Ω\times\mathbb{R}^k\to \mathbb{R}$ such that $\left(\frac{\partial F}{\partial u_1},\ldots,\frac{\partial F}{\partial u_k}\right)=\left(f_1,\ldots,f_k\right)$, $h_i\in \left(\big(H^1_0(Ω)\big)^*,\|\cdot\|_*\right)$. We establish sufficient conditions for the multiplicity of solutions of the above system by using variational methods with a suitable singular Trudinger-Moser inequality when $\varepsilon>0$ is small.
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