2 problems

Let $A:=\Bbbk_{-1}[\mathbf{x}]$ and let $G:=C_n$ act as in the paper. A graded isolated singularity means that the invariant ring has the isolated-singularity property in the grade…

Let $A$ be a finitely generated basic algebra, module-finite over its prime center $Z$, and let $d$ be the dimension vector of a large $A$-module. Assume that $A$ is homologically…