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arXiv 2101.08770math.AP
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具有平方反比势的非均匀NLS

On the inhomogeneous NLS with inverse-square potential

Luccas Campos, Carlos M. Guzmán

摘要:

本文考虑$\mathbb{R}^N$ $$ i u_t + \mathcal{L}_a u+λ|x|^{-b}|u|^αu = 0,\;\;\mathcal{L}_a=Δ-\frac{a}{|x|^2}, $$中具有平方反比势的非齐次非线性薛定谔方程,其中$λ=\pm1$,$α,b>0$和$a>-\frac{(N-2)^2}{4}$ .我们首先建立了$λ=1$在$H^1_a(\mathbb{R}^N)$中整体存在和爆破的充分条件,使用Gagliardo-Nirenberg型估计。在续集中,我们研究了局部和全球的适定性在$H^1_a(\mathbb{R}^N)$在$H^1$ -亚临界的情况下,应用标准的Eschenhartz估计结合不动点参数。做到这一点的关键是建立良好的非线性估计。利用这些估计,我们还显示了一个散射准则,并在$H^1_a(\mathbb{R}^N)$中构建了一个波算子,质量超临界和能量亚临界的情况下。

英文摘要:

We consider the inhomogeneous nonlinear Schrödinger equation with inverse-square potential in $\mathbb{R}^N$ $$ i u_t + \mathcal{L}_a u+λ|x|^{-b}|u|^αu = 0,\;\;\mathcal{L}_a=Δ-\frac{a}{|x|^2}, $$ where $λ=\pm1$, $α,b>0$ and $a>-\frac{(N-2)^2}{4}$. We first establish sufficient conditions for global existence and blow-up in $H^1_a(\mathbb{R}^N)$ for $λ=1$, using a Gagliardo-Nirenberg-type estimate. In the sequel, we study local and global well-posedness in $H^1_a(\mathbb{R}^N)$ in the $H^1$-subcritical case, applying the standard Strichartz estimates combined with the fixed point argument. The key to do that is to establish good estimates on the nonlinearity. Making use of these estimates, we also show a scattering criterion and construct a wave operator in $H^1_a(\mathbb{R}^N)$, for the mass-supercritical and energy-subcritical case.

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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