Automorphisms of Nikulin-type orbifolds
arXiv:2411.04668
Abstract
Nikulin-type orbifolds are certain singular 4-dimensional irreducible holomorphic symplectic varieties. We show that the monodromy group of Nikulin-type orbifolds is maximal and classify finite order symplectic automorphisms up to deformation in terms of their action on the second integral cohomology group.
18 pages, 1 Table, dataset in bibliography. Final version; accepted for publication in Revista Matemà tica Iberoamericana