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arXiv 2104.06408math.AP
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Besov空间中Euler方程的不适定性

Ill-posedness for the Euler equations in Besov spaces

Jinlu Li, Yanghai Yu, Weipeng Zhu

摘要:

本文用$d\geq2$考虑了$\mathbb{R}^d$中Euler方程的Cauchy问题。我们构造了一个初始数据$u_0\in B^σ_{p,\infty}$,表明从$u_0$出发的Euler方程的相应解映射在$B^σ_{p,\infty}$的度量下在$t = 0$处是不连续的,这意味着该方程在$B^σ_{p,\infty}$中是不适定性的.本文推广了Cheskidov和Shvkikoy \cite{Cheskidov}的周期结果.

英文摘要:

In the paper, we consider the Cauchy problem to the Euler equations in $\mathbb{R}^d$ with $d\geq2$. We construct an initial data $u_0\in B^σ_{p,\infty}$ showing that the corresponding solution map of the Euler equations starting from $u_0$ is discontinuous at $t = 0$ in the metric of $B^σ_{p,\infty}$, which implies the ill-posedness for this equation in $B^σ_{p,\infty}$. We generalize the periodic result of Cheskidov and Shvydkoy \cite{Cheskidov}.

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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