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arXiv · 1707.02881

The nilpotent variety of $W(1;n)_{p}$ is irreducible

Cong Chen
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Abstract

In the late 1980s, Premet conjectured that the nilpotent variety of any finite dimensional restricted Lie algebra over an algebraically closed field of characteristic $p>0$ is irreducible. This conjecture remains open, but it is known to hold for a large class of simple restricted Lie algebras, e.g. for Lie algebras of connected reductive algebraic groups, and for Cartan series $W, S$ and $H$. In this paper, with the assumption that $p>3$, we confirm this conjecture for the minimal $p$-envelope $W(1;n)_p$ of the Zassenhaus algebra $W(1;n)$ for all $n\geq 2$.

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Cong Chen. 2017-07-10. The nilpotent variety of $W(1;n)_{p}$ is irreducible. https://doi.org/10.1142/s0219498819500567

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