发表机构
New York University Abu Dhabi(纽约大学阿布扎比分校)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
研究Camassa-Holm方程在长度尺度趋于零时的奇异极限,发现对光滑初值,激波形成后收敛到Burgers方程熵解失败。
AI 中文摘要
我们研究了当长度尺度$\ell$趋于零时Camassa-Holm方程的奇异极限。尽管形式极限是通量为$3u^2/2$的Burgers方程,但我们证明,对于一类光滑初值,在激波形成后,即使沿局部时空$L^1$中的子序列,收敛到熵解也会失败。
英文摘要
We study the singular limit of the Camassa--Holm equation as the length scale $\ell$ tends to zero. Although the formal limit is the Burgers equation with flux $3u^2/2$, we show that, for a class of smooth initial data, convergence to entropy solutions fails after the shock formation, even along subsequences in local space-time $L^1$.