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arXiv 2407.03565math.AP
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周期二次导数非线性薛定谔方程组的适定性与不适定性

Well-posedness and ill-posedness for a system of periodic quadratic derivative nonlinear Schrödinger equations

Hiroyuki Hirayama, Shinya Kinoshita, Mamoru Okamoto

AI总结:

本文研究周期二次导数非线性薛定谔方程组的柯西问题,在尺度临界正则性下证明适定性并给出不适定性结果,且迭代论证下结果最优。

摘要:

我们考虑由M. Colin和T. Colin(2004)引入的二次导数非线性薛定谔方程组作为激光-等离子体相互作用模型的柯西问题。对于非周期情形,作者证明了若干适定性结果,其中包含$d\geq 2$时的尺度临界情形。在本文中,我们证明了该方程组在周期情形下的适定性。特别地,在拉普拉斯算子系数满足某些条件下,对于$d\geq 3$,在尺度临界正则性下证明了适定性。我们还证明了一些不适定性结果。只要使用迭代论证,我们的适定性结果除某些临界情形外是最优的。

英文摘要:

We consider the Cauchy problem of a system of quadratic derivative nonlinear Schrödinger equations which was introduced by M. Colin and T. Colin (2004) as a model of laser-plasma interaction. For the nonperiodic setting, the authors proved some well-posedness results, which contain the scaling critical case for $d\geq 2$. In the present paper, we prove the well-posedness of this system for the periodic setting. In particular, well-posedness is proved at the scaling critical regularity for $d\geq 3$ under some conditions for the coefficients of the Laplacian. We also prove some ill-posedness results. As long as we use an iteration argument, our well-posedness results are optimal except for some critical cases.

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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