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arXiv 2109.09169math.APnlin.SI
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Davey-Stewartson I系统的数值研究

Numerical study of Davey-Stewartson I systems

J. Frauendiener, C. Klein, U. Muhammad, N. Stoilov

摘要:

对可积Davey-Stewartson(DS)I方程无穷远处平凡边界条件,提出了一种有效的高精度混合数值方法.该代码用于详细的数值研究DS I解决方案在这个类。局部固定的解决方案被构造和证明是不稳定的分散和爆破。讨论了光滑减函数的Schwartz类中初值的有限时间爆破问题。

英文摘要:

An efficient high precision hybrid numerical approach for integrable Davey-Stewartson (DS) I equations for trivial boundary conditions at infinity is presented for Schwartz class initial data. The code is used for a detailed numerical study of DS I solutions in this class. Localized stationary solutions are constructed and shown to be unstable against dispersion and blow-up. A finite-time blow-up of initial data in the Schwartz class of smooth rapidly decreasing functions is discussed.

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