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arXiv 1804.07618math.AP
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$\mathbb{R}^N$中$1-$ Laplacian问题基态解的存在性和轮廓

Existence and profile of ground-state solutions to a $1-$Laplacian problem in $\mathbb{R}^N$

Claudianor O. Alves, Giovany M. Figueiredo, Marcos T. O. Pimenta

摘要:

在这项工作中,我们证明了基态解的存在性以下一类问题\begin{equation*} \left\{ \begin{array}{ll} \displaystyle - Δ_1 u + (1 + λV(x))\frac{u}{|u|} & = f(u), \quad x \in \mathbb{R}^N, \\ u \in BV(\mathbb{R}^N), & \end{array} \right. \label{Pintro} \end{equation*} \end{abstract}其中$λ> 0$,$Δ_1$表示的$1-$拉普拉斯算子是正式定义的$Δ_1 u = \mbox{div}(\nabla u/|\nabla u|)$,$V:\mathbb{R}^N \to \mathbb{R}$是一个潜在的满足某些条件和$f:\mathbb{R} \to \mathbb{R}$是一个亚临界和超线性非线性。我们证明了$λ> 0$足够大,存在基态解,并作为$λ\to +\infty$,这样的解决方案收敛到一个基态解的极限问题在$Ω= \mbox{int}( V^{-1}(\{0\}))$。

英文摘要:

In this work we prove the existence of ground state solutions for the following class of problems \begin{equation*} \left\{ \begin{array}{ll} \displaystyle - Δ_1 u + (1 + λV(x))\frac{u}{|u|} & = f(u), \quad x \in \mathbb{R}^N, \\ u \in BV(\mathbb{R}^N), & \end{array} \right. \label{Pintro} \end{equation*} \end{abstract} where $λ> 0$, $Δ_1$ denotes the $1-$Laplacian operator which is formally defined by $Δ_1 u = \mbox{div}(\nabla u/|\nabla u|)$, $V:\mathbb{R}^N \to \mathbb{R}$ is a potential satisfying some conditions and $f:\mathbb{R} \to \mathbb{R}$ is a subcritical and superlinear nonlinearity. We prove that for $λ> 0$ large enough there exists ground-state solutions and, as $λ\to +\infty$, such solutions converges to a ground-state solution of the limit problem in $Ω= \mbox{int}( V^{-1}(\{0\}))$.

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