arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1901.06951math.DSmath.APmath.CA
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梯度系统的规定能量连接轨道

Prescribed energy connecting orbits for gradient systems

Francesca Alessio, Piero Montecchiari, Andres Zuniga

摘要:

本文研究了一类广义位势$V\in C^1(\mathbb{R}^N)$的保守系统$\ddot{q}=\nabla V(q), \; q\in\mathbb{R}^N$.假设给定的子水平集$\{V\leq c\}$在两个闭子集$\mathcal{V}^c_-$和$\mathcal{V}^c_+$的不交并中分裂,对于某些$c\in\mathbb{R}$,我们建立了上述系统的有界解$q_c$的存在性,其能量等于$-c$,其轨迹连接$\mathcal{V}^c_-$和$\mathcal{V}^c_+$ .通过能量约束变分方法得到的解决方案,只要温和的连续性的问题。根据$\nabla V$在$\partial\mathcal{V}^c_{\pm}$上的行为,连接轨道分为制动型、异宿型和同宿型。接下来,我们说明了应用程序的存在性结果的双势$V$,并为潜在的Duffing型和多摆型系统。在上述每种情况下,我们证明了一些收敛结果的家庭的解决方案$(q_c)$。

英文摘要:

We are concerned with conservative systems $\ddot{q}=\nabla V(q), \; q\in\mathbb{R}^N$ for a general class of potentials $V\in C^1(\mathbb{R}^N)$. Assuming that a given sublevel set $\{V\leq c\}$ splits in the disjoint union of two closed subsets $\mathcal{V}^c_-$ and $\mathcal{V}^c_+$, for some $c\in\mathbb{R}$, we establish the existence of bounded solutions $q_c$ to the above system with energy equal to $-c$ whose trajectories connect $\mathcal{V}^c_-$ and $\mathcal{V}^c_+$. The solutions are obtained through an energy constrained variational method, whenever mild coerciveness properties are present in the problem. The connecting orbits are classified into brake, heteroclinic or homoclinic type, depending on the behavior of $\nabla V$ on $\partial\mathcal{V}^c_{\pm}$. Next, we illustrate applications of the existence result to double-well potentials $V$, and for potentials associated to systems of Duffing type and of multiple-pendulum type. In each of the above cases we prove some convergence results of the family of solutions $(q_c)$.

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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