English

Two conjectures on Ricci-flat Kaehler metrics

Differential Geometry 2017-12-20 v2

Abstract

We propose two conjectures about Ricci-flat metrics: Conjecture 1: A Ricci-flat projectively induced metric is flat. Conjecture 2: A Ricci-flat metric on an nn-dimensional complex manifold such that the an+1a_{n+1} coefficient of the TYZ expansion vanishes is flat. We verify Conjecture 1 (see Theorem 1.1) under the assumptions that the metric is radial and stable-projectively induced and Conjecture 2 (see Theorem 1.2) for complex surfaces whose metric is either radial or complete and ALE. We end the paper by showing, by means of the Simanca metric, that the assumption of Ricci-flatness in Conjecture 1 and in Theorem 1.2 cannot be weakened to scalar-flatness (see Theorem 1.3).

Keywords

Cite

@article{arxiv.1705.03908,
  title  = {Two conjectures on Ricci-flat Kaehler metrics},
  author = {Andrea Loi and Filippo Salis and Fabio Zuddas},
  journal= {arXiv preprint arXiv:1705.03908},
  year   = {2017}
}

Comments

To appear in Mathematische Zeitschrift

R2 v1 2026-06-22T19:43:25.819Z