English

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 pp-th moment of the expected vanishing order. These invariants lie between α\alpha and δ\delta-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 α\alpha and δ\delta-criterions in the literature. They are also related to the dpd_p-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

R2 v1 2026-06-23T20:50:07.724Z