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arXiv 0906.5261math.AP
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准线性薛定谔方程驻波解的稳定性和不稳定性

Stability and instability results for standing waves of quasi-linear Schrödinger equations

Mathieu Colin, Louis Jeanjean, Marco Squassina

摘要:

研究了等离子体物理中超流膜理论中的一类准线性薛定谔方程。首先,使用规范变换和推导过程中,我们解决了一些规律性的假设下,柯西问题。然后,利用变分方法,研究了驻波的存在性、轨道稳定性和不稳定性。

英文摘要:

We study a class of quasi-linear Schrödinger equations arising in the theory of superfluid film in plasma physics. First, using gauge transforms and a derivation process we solve, under some regularity assumptions, the Cauchy problem. Then, by means of variational methods, we study the existence, the orbital stability and instability of standing waves which minimize some associated energy.

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