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arXiv 1203.6089math.AP
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二维聚焦五次非线性薛定谔方程的散射与爆破

Scattering and Blow up for the Two Dimensional Focusing Quintic Nonlinear Schrödinger Equation

Cristi Guevara, Fernando Carreon

摘要:

利用集中-紧性方法和定域维里型参数,研究了$\R^2$中聚焦五次非线性系统的$H^1$解的行为,即$$i \partial_t u+Δu+|u|^4u=0,\quad\quad (x, t) \in \R^2\times\R.$$($M[u]$和$E[u]$分别表示解的质量和能量)和$Q$($u,$的基态解),并在假设$M[u]E[u] <M[Q]E[Q]$的条件下,刻画了整体存在与有限时间存在的阈值.此外,我们显示了全球现有的时间解决方案和有限的或“弱”的互补区域的爆炸散射。这项工作是在凯尼格和梅尔和Duyckaerts,霍尔默和Roudenko的精神。

英文摘要:

Using the concentration-compactness method and the localized virial type arguments, we study the behavior of $H^1$ solutions to the focusing quintic NLS in $\R^2$, namely, $$i \partial_t u+Δu+|u|^4u=0,\quad\quad (x, t) \in \R^2\times\R.$$ Denoting by $M[u]$ and $E[u]$, the mass and energy of a solution $u,$ respectively, and $Q$ the ground state solution to $-Q+ΔQ+ |Q|^4Q=0$, and assuming $M[u]E[u] <M[Q]E[Q]$, we characterize the threshold for global versus finite time existence. Moreover, we show scattering for global existing time solutions and finite or "weak" blow up for the complement region. This work is in the spirit of Kenig and Merle and Duyckaerts, Holmer, and Roudenko.

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