Borel subalgebras of the Witt algebra $W_1$

Yu-Feng Yao, Hao Chang

Let $\mathbb{F}$ be an algebraically closed field of characteristic $p>3$, and $⋙$ the $p$-dimensional Witt algebra over $\mathbb{F}$. Let $\mathbb{N}$ be the nilpotent cone of $⋙$.…