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arXiv 1503.06829math.APmath-phmath.MP
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一类具有次二次位势的分数阶哈密顿系统解的存在性和集中性

Existence and concentration of solution for a class of fractional Hamiltonian systems with subquadratic potential

César E. Torres Ledesma

摘要:

本文研究了分数阶哈密顿系统\begin{eqnarray}\label{00} {_{t}}D_{\infty}^α({_{-\infty}}D_{t}^αu) + λL(t)u = \nabla W(t, u), \;\;t\in \mathbb{R}, \end{eqnarray},其中$α\in (1/2, 1)$,$λ>0$为参数,$L\in C(\mathbb{R}, \mathbb{R}^{n\times n})$和$W \in C^{1}(\mathbb{R} \times \mathbb{R}^n, \mathbb{R})$ .与大多数关于这个问题的论文不同,我们要求PDMATHAMR对所有$t\in \mathbb{R}$都是半正定对称矩阵,即允许$L(t) \equiv 0$出现在PDMATHAMV的某个有限区间$\mathbb{I}$中.在对$W$的适当假设下,我们证明了非平凡弱解的存在性,该解在$\mathbb{R} \setminus \mathbb{I}$上为$λ\to \infty,$而在$H^α(\mathbb{R})$上收敛于$\tilde{u}$,其中$\tilde{u} \in E_{0}^α$是有限区间$\mathbb{I}$上分数阶哈密顿系统Dirichlet边值问题的非平凡弱解.

英文摘要:

This article study the fractional Hamiltonian systems \begin{eqnarray}\label{00} {_{t}}D_{\infty}^α({_{-\infty}}D_{t}^αu) + λL(t)u = \nabla W(t, u), \;\;t\in \mathbb{R}, \end{eqnarray} where $α\in (1/2, 1)$, $λ>0$ is a parameter, $L\in C(\mathbb{R}, \mathbb{R}^{n\times n})$ and $W \in C^{1}(\mathbb{R} \times \mathbb{R}^n, \mathbb{R})$. Unlike most other papers on this problem, we require that $L(t)$ is a positive semi-definite symmetric matrix for all $t\in \mathbb{R}$, that is, $L(t) \equiv 0$ is allowed to occur in some finite interval $\mathbb{I}$ of $\mathbb{R}$. Under some mild assumptions on $W$, we establish the existence of nontrivial weak solution, which vanish on $\mathbb{R} \setminus \mathbb{I}$ as $λ\to \infty,$ and converge to $\tilde{u}$ in $H^α(\mathbb{R})$; here $\tilde{u} \in E_{0}^α$ is nontrivial weak solution of the Dirichlet BVP for fractional Hamiltonian systems on the finite interval $\mathbb{I}$.

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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