Strict positivity of K\"ahler-Einstein currents
Abstract
K\"ahler-Einstein currents, also known as singular K\"ahler-Einstein metrics, have been introduced and constructed a little over a decade ago. These currents live on mildly singular compact K\"ahler spaces and their two defining properties are the following: they are genuine K\"ahler-Einstein metrics on and they admit local bounded potentials near the singularities of . In this note we show that these currents dominate a K\"ahler form near the singular locus, when either admits a global smoothing, or when has isolated smoothable singularities. Our results apply to klt pairs and allow us to show that if is any compact K\"ahler space of dimension with log terminal singularities, then any singular K\"ahler-Einstein metric of non-positive curvature dominates a K\"ahler form.
Keywords
Cite
@article{arxiv.2305.12422,
title = {Strict positivity of K\"ahler-Einstein currents},
author = {Vincent Guedj and Henri Guenancia and Ahmed Zeriahi},
journal= {arXiv preprint arXiv:2305.12422},
year = {2023}
}
Comments
41 pages, v2: expanded section 1.3