Ideals in the enveloping algebra of the positive Witt algebra

Alexey V. Petukhov, Susan J. Sierra

Let $W_{+}$ be the positive Witt algebra, which has a $C$-basis $\{e_n:n\in Z_{\ge 1}\}$, with Lie bracket $[e_i,e_j]=(j-i)e_{i+j}$. We study the two-sided ideal structure of…