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arXiv 2005.08789math.AP
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全色散KP方程的色散估计

Dispersive estimates for full dispersion KP equations

Didier Pilod, Jean-Claude Saut, Sigmund Selberg, Achenef Tesfahun

摘要:

为了克服经典Kadomtsev-Petviashvili方程的一些缺点,我们证明了David Lannes提出的全色散Kadomtsev-Petviashvili方程线性部分的几个色散估计.这些估计的证明结合了平稳相位方法与非对称贝塞尔函数的尖锐渐近性,这可能是独立的利益。因此,我们证明了与全色散Kadomtsev Petviashvili的初值问题是局部适定的$H^s(\mathbb R^2)$,$s>\frac74$,在毛细重力设置。

英文摘要:

We prove several dispersive estimates for the linear part of the Full Dispersion Kadomtsev-Petviashvili introduced by David Lannes to overcome some shortcomings of the classical Kadomtsev-Petviashvili equations. The proof of these estimates combines the stationary phase method with sharp asymptotics on asymmetric Bessel functions, which may be of independent interest. As a consequence, we prove that the initial value problem associated to the Full Dispersion Kadomtsev-Petviashvili is locally well-posed in $H^s(\mathbb R^2)$, for $s>\frac74$, in the capillary-gravity setting.

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