English

A Nonvanishing Conjecture for Cotangent Bundles

Algebraic Geometry 2020-06-11 v1

Abstract

In this paper we study the positivity of the cotangent bundle of projective manifolds. We conjecture that the cotangent bundle is pseudoeffective if and only the manifold has non-zero symmetric differentials. We confirm this conjecture for most projective surfaces that are not of general type.

Keywords

Cite

@article{arxiv.2006.05225,
  title  = {A Nonvanishing Conjecture for Cotangent Bundles},
  author = {Andreas Höring and Thomas Peternell},
  journal= {arXiv preprint arXiv:2006.05225},
  year   = {2020}
}

Comments

30 pages

R2 v1 2026-06-23T16:10:37.872Z