Year: 2026
Type: preprint
Abstract: In this article we show that a biregular involution $i : X \to X$ defined on an unnodal Coble surface $X$ with irreducible boundary curve $\{C\} = |- 2 K_X|$ is necessarily a lift of a Bertini involution. Then we show with counterexamples that the hypothesis of irreducibility of $C$ and unnodality of $X$ are both necessary.
Source: arXiv (Cornell University)
Author: Pieroni, Federico
Language: English
Subfield: Geometry and Topology
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7224102899