2 problems

Let $u(x,t)$ denote the real pole-free solution of the second member of the Painlevé I hierarchy, … with $t\in\mathbb{R}$. Consider solutions of generalized Kadomtsev–Petviashvili…

Saut–Tzvzetkov's $L^2$-data conjecture. The IVP is globally well-posed for such initial data $\phi$. This conjecture asks whether the global well-posedness known for the analogous…