Sharp well-posedness and ill-posedness of the Cauchy problem for the higher-order KdV

Wei Yan, Minjie Jiang, Yongsheng Li +1

In this paper, we investigate the Cauchy problem for the higher-order KdV-type equation \begin{eqnarray*} u_{t}+(-1)^{j+1}\partial_{x}^{2j+1}u + \frac{1}{2}\partial_{x}(u^{2}) = 0,…