vix.ing · top · new · best · stats · spec

Thirty-three deformation classes of compact hyperkähler orbifolds

2022/11/26 by Grégoire Menet, Menet, Grégoire
Mathematics · #Advanced Algebra and Geometry #Algebraic Geometry (math.AG) #Algebraic Geometry and Number Theory #FOS: Mathematics #Geometry and complex manifolds

paper · pdf · doi:10.48550/arxiv.2211.14524

openalex publication_date 2022/11/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

As their smooth analogue the irreducible symplectic varieties appear as elementary bricks in the generalizations of the Bogomolov decomposition theorem (arXiv:math/0402243, arXiv:2012.00441). Let S be a K3 surface; generalizing the Fujiki construction, we investigate the irreducible symplectic varieties with simply connected smooth locus that can be obtained as terminalizations of quotients of the product Sn. In dimension 4, we compute the singularities for 29 orbifolds examples which appear to be independent under deformation. We also provide 4 additional orbifolds examples in dimension 6.

Related