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arXiv 1007.0077math.AP
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薛定谔方程的非线性阻尼有限时间绝灭

Finite time extinction by nonlinear damping for Schrodinger equation

Rémi Carles, Clément Gallo

摘要:

考虑紧致流形上的薛定谔方程,其中存在一个非线性阻尼项,该阻尼项是齐次线性的。对于能量空间中的初始数据,我们构造了一个弱解,定义为所有的正时间,这是唯一的。在一维情况下,我们证明了它在有限时间内变为零。在二维和三维情况下,我们证明了相同的结果下,额外的规则性的假设下的初始数据。

英文摘要:

We consider the Schrodinger equation on a compact manifold, in the presence of a nonlinear damping term, which is homogeneous and sublinear. For initial data in the energy space, we construct a weak solution, defined for all positive time, which is shown to be unique. In the one-dimensional case, we show that it becomes zero in finite time. In the two and three-dimensional cases, we prove the same result under the assumption of extra regularity on the initial datum.

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