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arXiv 2403.06554math.AP
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低正则性下中间长波方程的无条件深水极限

Unconditional deep-water limit of the intermediate long wave equation in low-regularity

Justin Forlano, Guopeng Li, Tengfei Zhao

AI总结:

该研究将Moşincat-Pilod(2023)针对BO的策略适配到ILW,利用扰动项光滑性,得到ILW在低正则Sobolev空间的无条件唯一性结果,进而建立实直线与圆周情形下ILW到BO的无条件深水极限。

摘要:

本文在实直线和圆周两种情形下,于低正则Sobolev空间中建立了中间长波方程(ILW)到Benjamin-Ono方程(BO)的无条件深水极限。我们的主要工具是ILW在$H^s$空间中的新无条件唯一性结果:实直线情形下满足$s_0<s\leq \frac{1}{4}$,圆周情形下满足$s_0<s< \frac{1}{2}$,其中$s_0 = 3-\sqrt{33/4}\approx 0.1277$。我们将Moşincat-Pilod(2023)针对BO的策略适配到ILW场景,将ILW视为BO的一个扰动,并利用扰动项的光滑化性质完成推导。

英文摘要:

In this paper, we establish the unconditional deep-water limit of the intermediate long wave equation (ILW) to the Benjamin-Ono equation (BO) in low-regularity Sobolev spaces on both the real line and the circle. Our main tool is new unconditional uniqueness results for ILW in $H^s$ when $s_0<s\leq \frac 14$ on the line and $s_0<s< \frac 12$ on the circle, where $s_0 = 3-\sqrt{33/4}\approx 0.1277$. Here, we adapt the strategy of Moşincat-Pilod (2023) for BO to the setting of ILW by viewing ILW as a perturbation of BO and making use of the smoothing property of the perturbation term.

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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