arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1902.02618math.AP
收藏

耦合非线性Hartree型方程驻波解的存在性和稳定性

Existence and stability of standing waves for coupled nonlinear Hartree type equations

Santosh Bhattarai

摘要:

研究了耦合非线性Hartree型方程\[ -i\frac{\partial}{\partial t}ψ_j=Δψ_j+\sum_{k=1}^m \left(W\star |ψ_k|^p \right)|ψ_j|^{p-2}ψ_j, \]驻波解的存在性和稳定性,其中$ψ_j:\mathbb{R}^N\times \mathbb{R}\to \mathbb{C}$为$j=1, \ldots, m$,位势$W:\mathbb{R}\to [0, \infty)$满足一定的假设.我们的方法依赖于驻波的变分表征的基础上的能量最小化时,$L^2$规范的分量波规定。我们得到的存在性和稳定性的两个和三个组件系统和一定范围内的$p$。特别地,我们的论证适用于当$W(x)=|x|^{-α}$对于某些$α>0.$

英文摘要:

We study existence and stability of standing waves for coupled nonlinear Hartree type equations \[ -i\frac{\partial}{\partial t}ψ_j=Δψ_j+\sum_{k=1}^m \left(W\star |ψ_k|^p \right)|ψ_j|^{p-2}ψ_j, \] where $ψ_j:\mathbb{R}^N\times \mathbb{R}\to \mathbb{C}$ for $j=1, \ldots, m$ and the potential $W:\mathbb{R}\to [0, \infty)$ satisfies certain assumptions. Our method relies on a variational characterization of standing waves based on minimization of the energy when $L^2$ norms of component waves are prescribed. We obtain existence and stability results for two and three-component systems and for a certain range of $p$. In particular, our argument works in the case when $W(x)=|x|^{-α}$ for some $α>0.$

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。

↑