发表机构
The University of Osaka; ARISE Analytics Inc.(大阪大学; ARISE Analytics公司)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本文证明二次NLS系统在$\mathbb{R}^{5}$中,当$\kappa\neq1/2$且无径向对称时,基态以下存在散射,方法基于Kenig--Merle的集中紧性与刚性及局部virial论证。
AI 中文摘要
我们考虑二次NLS系统 \begin{equation*} \begin{cases} i\partial_tu+\Delta u=v\bar{u},\newline i\partial_tv+\kappa\Delta v=u^2, \end{cases} \qquad (t,x)\in\mathbb{R}\times\mathbb{R}^5, \end{equation*} 其中$\kappa>0$。如果$\kappa=1/2$,称为质量共振条件,则Hamano证明了基态以下的散射。此外,当$\kappa \neq 1/2$时,Hamano--Inui--Nishimura(2021)证明了径向解的散射。在本文中,我们证明了在$\kappa\neq1/2$且无径向对称的情况下,基态以下的散射。我们的证明基于Kenig--Merle(2006)的集中紧性和刚性方法。对于刚性论证,我们遵循Pausader(2010),在动量正交方向上使用局部virial论证。
英文摘要
We consider the quadratic NLS system \begin{equation*} \begin{cases} i\partial_tu+Δu=v\bar{u},\newline i\partial_tv+κΔv=u^2, \end{cases} \qquad (t,x)\in\mathbb{R}\times\mathbb{R}^5, \end{equation*} where $κ>0$. If $κ=1/2$, which is called mass resonance condition, then scattering below the ground state is shown by Hamano. Moreover, when $κ\neq 1/2$, scattering of radial solutions is proved in Hamano--Inui--Nishimura (2021). In the present paper, we prove scattering below the ground state for $κ\neq1/2$ without radial symmetry. Our proof is based on the concentration compactness and rigidity method by Kenig--Merle (2006). For the rigidity argument, following Pausader (2010), we use a localized virial argument in the direction orthogonal to the momentum.