K. Retert

Noncommutative ampleness from finite endomorphisms

Let $X$ be a projective integral scheme with endomorphism $σ$, where $σ$ is finite, but not an automorphism. We examine noncommutative ampleness of bimodules defined by $σ$. In contrast to the automorphism case, one-sided ampleness is possible. We also find that rings and bimodule algebras associated with $σ$ are not noetherian.