Actions of Small Groups on Two-Dimensional Artin-Schelter Regular Algebras

Simon Crawford

In commutative invariant theory, a classical result due to Auslander says that if $R=\mathbb{k}[x_1,\dots ,x_n]$ and $G$ is a finite subgroup of $\text{Aut}_{\text{gr}}(R) \cong \tex…