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arXiv 2003.08849math.APmath-phmath.MP
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具有有界初值的Z和R上的非线性Schrodinger方程:例子和说明

The nonlinear Schrodinger equation on Z and R with bounded initial data: examples and conjectures

Benjamin Dodson, Avraham Soffer, Thomas Spencer

摘要:

研究了具有有界初值且在无穷远处不为零的非线性薛定谔方程。实例包括周期性、准周期性和随机初始数据。在格上,我们证明了解决方案是多项式有界的时间为任何有界的数据。在连续介质中,利用牛顿迭代法证明了实解析数据的局部存在性。具有正则化非线性的NLS的全局存在性通过分析局部能量范数来实现。

英文摘要:

We study the nonlinear Schrödinger equation (NLS) with bounded initial data which does not vanish at infinity. Examples include periodic, quasi-periodic and random initial data. On the lattice we prove that solutions are polynomially bounded in time for any bounded data. In the continuum, local existence is proved for real analytic data by a Newton iteration scheme. Global existence for NLS with a regularized nonlinearity follows by analyzing a local energy norm.

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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