English

Weighted cscK metrics on K\"ahler varieties

Differential Geometry 2026-02-18 v3 Analysis of PDEs Complex Variables

Abstract

We study the weighted constant scalar curvature K\"ahler equations on mildly singular K\"ahler varieties. Assuming the existence of a suitable resolution of singularities, we establish the existence of singular weighted cscK metrics when the weighted Mabuchi functional is coercive for an extremal weight. This extends the works of Chen-Cheng and He to the singular weighted setting. Moreover, we provide a method for constructing examples of singular cscK metrics inspired by the work of Arezzo-Pacard. In contrast to the usual gluing techniques, our approach does not require a precise understanding about of the metric behavior near the singular locus.

Keywords

Cite

@article{arxiv.2412.07968,
  title  = {Weighted cscK metrics on K\"ahler varieties},
  author = {Chung-Ming Pan and Tat Dat Tô},
  journal= {arXiv preprint arXiv:2412.07968},
  year   = {2026}
}

Comments

35 pages; v3: corrected inaccuracies in the earlier version, accepted by J. Lond. Math. Soc