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arXiv 2406.09435math.AP
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带反平方势的组合非线性 Schrödinger 方程的动力学

Dynamics of the combined nonlinear Schrödinger equation with inverse-square potential

Zuyu Ma, Yilin Song, Jiqiang Zheng

AI总结:

本文研究 d=3,4,5 时带反平方势的组合能量临界 NLS,在阈值以下及阈值能量处分别用集中紧性、变分分析和调制分析刻画散射、爆破及临界动力学,并推广标准组合 NLS 的结果。

摘要:

我们研究维数 d∈{3,4,5} 时,受到 \dot H^{1/2}-临界非线性扰动并带有反平方势的聚焦能量临界 Schrödinger 方程(CNLS_a)的长时间动力学。该方程为 i∂_t u−\mathcal L_a u=−|u|^{4/(d−2)}u+|u|^{4/(d−1)}u,其中 (t,x)∈R×R^d,初值 u(0,x)=u_0(x)∈H_a^1(R^d),且 \mathcal L_a=−Δ+a|x|^{−2};能量低于并等于由基态 W_a 给出的阈值 m_a,W_a 满足 \mathcal L_aW_a=|W_a|^{4/(d−2)}W_a。当能量低于阈值时,我们利用集中紧性论证及变分分析刻画散射与爆破区域。当能量等于阈值时,我们使用与该方程相关的调制分析对 H_a^1 解的动力学进行分类。在两种散射结果情形中,d=4,5 时均不需要径向假设。我们的结果推广了文献[31–33]和[3]在标准组合 NLS 情形下的散射结果。

英文摘要:

We consider the long-time dynamics of focusing energy-critical Schrödinger equation perturbed by the $\dot{H}^\frac{1}{2}$-critical nonlinearity and with inverse-square potential(CNLS$_a$) in dimensions $d\in\{3,4,5\}$ \begin{equation}\label{NLS-ab} \begin{cases} i\partial_tu-\mathcal{L}_au=-|u|^{\frac{4}{d-2}}u+|u|^{\frac{4}{d-1}}u, \quad (t,x)\in\mathbb{R}\times\mathbb{R}^d,\tag{CNLS$_a$},\\ u(0,x)=u_0(x)\in H^1_a(\mathbb{R}^d), \end{cases} \end{equation} where $\mathcal{L}_a=-Δ+a|x|^{-2}$ and the energy is below and equal to the threshold $m_a$, which is given by the ground state $W_a$ satisfying $\mathcal{L}_aW_a=|W_a|^{\frac{4}{d-2}}W_a$. When the energy is below the threshold, we utilize the concentration-compactness argument as well as the variatonal analysis to characterize the scattering and blow-up region. When the energy is equal to the threshold, we use the modulation analysis associated to the equation \eqref{NLS-ab} to classify the dynamics of $H_a^1$-solution. In both regimes of scattering results, we do not need the radial assumption in $d=4,5$. Our result generalizes the scattering results of [31-33] and [3] in the setting of standard combined NLS.

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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