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arXiv 2104.14717math.AP
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Besov空间中广义Camassa-Holm-Novikov方程对初值的非一致依赖性

Non-uniform dependence on initial data for the generalized Camassa-Holm-Novikov equation in Besov space

Xing Wu, Yanghai Yu, Yu Xiao

摘要:

本文研究了一类具有高阶非线性项的广义Camassa-Holm-Novikov方程,它统一了Camassa-Holm方程和Novikov方程作为特例.本文证明了广义Camassa-Holm-Novikov方程的解映射在Besov空间$B_{p, r}^s(\mathbb{R})$与$s>\max\{1+\frac{1}{p}, \frac{3}{2}\}$、$1\leq p, r< \infty$以及临界空间\cite{Li 2020, 1Li 2020, Li 2021}中关于初值不是一致连续的。当量ag 269(2020)8686-8700; J.Math.FluidMech.22(2020)4:50; J.Math.FluidMech.,(2021)23:36)。

英文摘要:

Considered in this paper is the generalized Camassa-Holm-Novikov equation with high order nonlinearity, which unifies the Camassa-Holm and Novikov equations as special cases. We show that the solution map of generalized Camassa-Holm-Novikov equation is not uniformly continuous on the initial data in Besov spaces $B_{p, r}^s(\mathbb{R})$ with $s>\max\{1+\frac{1}{p}, \frac{3}{2}\}$, $1\leq p, r< \infty$ as well as in critical space $B_{2, 1}^{\frac{3}{2}}(\mathbb{R}).$ Our result covers and improves the previous work given by Li et al. \cite{Li 2020, 1Li 2020, Li 2021}(J. Differ. Equ. 269 (2020) 8686-8700; J. Math. Fluid Mech. 22 (2020) 4:50; J. Math. Fluid Mech., (2021) 23:36).

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