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arXiv 1904.04030math.AP
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关于二次NLS在$L^2(\mathbb{R}) + H^1(\mathbb{T})$上的整体适定性

On the global well-posedness of the quadratic NLS on $L^2(\mathbb{R}) + H^1(\mathbb{T})$

Leonid Chaichenets, Dirk Hundertmark, Peer Christian Kunstmann, Nikolaos Pattakos

摘要:

研究了一维非线性薛定谔方程的幂非线性$|u|^{α- 1} u$,方程的初值为$u_0 \in L^2(\mathbb{R}) + H^1(\mathbb{T})$ .我们证明了Cauchy问题是局部适定的。在二次非线性($α= 2$)情形下,利用Gronwall不等式得到了空间$C(\mathbb{R}, L^2(\mathbb R) + H^1(\mathbb T))$的整体适定性.

英文摘要:

We study the one dimensional nonlinear Schrödinger equation with power nonlinearity $|u|^{α- 1} u$ for $α\in [1,5]$ and initial data $u_0 \in L^2(\mathbb{R}) + H^1(\mathbb{T})$. We show via Strichartz estimates that the Cauchy problem is locally well-posed. In the case of the quadratic nonlinearity ($α= 2$) we obtain global well-posedness in the space $C(\mathbb{R}, L^2(\mathbb R) + H^1(\mathbb T))$ via Gronwall's inequality.

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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