Orbifold modifications of complex analytic varieties
Algebraic Geometry
2025-12-25 v6 Complex Variables
Abstract
We prove that if is a compact complex analytic variety, which has quotient singularities in codimension 2, then there is a projective bimeromorphic morphism , such that has quotient singularities, and that the indeterminacy locus of has codimension at least 3 in . As an application, we deduce the Bogomolov-Gieseker inequality on orbifold Chern classes for stable reflexive coherent sheaves on compact K\"ahler varieties which have quotient singularities in codimension 2.
Cite
@article{arxiv.2401.07273,
title = {Orbifold modifications of complex analytic varieties},
author = {Wenhao Ou},
journal= {arXiv preprint arXiv:2401.07273},
year = {2025}
}
Comments
The major part of the paper is replaced by the paper "Orbifold modifications of complex analytic spaces" by J\'anos Koll\'ar and Wenhao Ou. The part on Bogomolov-Gieseker inequalities is splitted into a short note