English

Holomorphic projective connections on compact complex threefolds

Differential Geometry 2023-04-25 v2 Algebraic Geometry

Abstract

We prove that a holomorphic projective connection on a complex projective threefold is either flat, or it is a translation invariant holomorphic projective connection on an abelian threefold. In the second case, a generic translation invariant holomorphic affine connection on the abelian variety is not projectively flat. We also prove that a simply connected compact complex threefold with trivial canonical line bundle does not admit any holomorphic projective connection.

Keywords

Cite

@article{arxiv.2005.08272,
  title  = {Holomorphic projective connections on compact complex threefolds},
  author = {Indranil Biswas and Sorin Dumitrescu},
  journal= {arXiv preprint arXiv:2005.08272},
  year   = {2023}
}

Comments

This is the final version to appear in Math. Zeitschrift

R2 v1 2026-06-23T15:36:22.055Z