Valuative invariants with higher moments
Algebraic Geometry
2021-08-03 v3 Differential Geometry
Abstract
In this article we introduce a family of valuative invariants defined in terms of the -th moment of the expected vanishing order. These invariants lie between and -invariants. They vary continuously in the big cone and semi-continuously in families. Most importantly, they can detect the K-stability of Fano varieties, which generalizes the and -criterions in the literature. They are also related to the -geometry of maximal geodesic rays.
Keywords
Cite
@article{arxiv.2012.04856,
title = {Valuative invariants with higher moments},
author = {Kewei Zhang},
journal= {arXiv preprint arXiv:2012.04856},
year = {2021}
}
Comments
v3: final version, to appear in J. Geom. Anal