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arXiv 1705.04775math.AP
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具有陡势阱的双调和方程的解

Solutions for biharmonic equations with steep potential wells

Yuxia Guo, Zhongwei Tang, Lushun Wang

摘要:

本文研究了下列双调和方程最小能量解的存在性:$$Δ^2 u+(λV(x)-δ)u=|u|^{p-2}u \quad in\quad \mathbb{R}^N$$其中$N\geq 5, 2<p\leq\frac{2N}{N-4}, λ>0$是参数,$V(x)$是具有非空零点集的非负势函数$\mbox{int} V^{-1}(0)$,$0<δ<μ_0$和$μ_0$是$Δ^2$在$V(x)$的零点集$\mbox{int} V^{-1}(0)$中的主特征值.这里$\mbox{int} V^{-1}(0)$表示集合$V^{-1}(0):=\{x\in \mathbb{R}^N: V(x)=0\}$的内部部分。我们证明了当$λ>0$较大时,上述方程存在一个陷在零集$\mbox{int} V^{-1}(0)$附近的最小能量解.

英文摘要:

In this paper, we are concerned with the existence of least energy solutions for the following biharmonic equations: $$Δ^2 u+(λV(x)-δ)u=|u|^{p-2}u \quad in\quad \mathbb{R}^N$$ where $N\geq 5, 2<p\leq\frac{2N}{N-4}, λ>0$ is a parameter, $V(x)$ is a nonnegative potential function with nonempty zero sets $\mbox{int} V^{-1}(0)$, $0<δ<μ_0$ and $μ_0$ is the principle eigenvalue of $Δ^2$ in the zero sets $\mbox{int} V^{-1}(0)$ of $V(x)$. Here $\mbox{int} V^{-1}(0)$ denotes the interior part of the set $V^{-1}(0):=\{x\in \mathbb{R}^N: V(x)=0\}$. We prove that the above equation admits a least energy solution which is trapped near the zero sets $\mbox{int} V^{-1}(0)$ for $λ>0$ large.

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