English

Non-vanishing implies numerical dimension one abundance

Algebraic Geometry 2025-08-01 v2 Complex Variables Differential Geometry

Abstract

We show that the non-vanishing conjecture implies the abundance conjecture when ν1\nu\leq 1. We also prove the abundance conjecture in dimension 5\leq 5 when κ0\kappa\geq 0 and ν1\nu\leq 1 unconditionally.

Cite

@article{arxiv.2505.05250,
  title  = {Non-vanishing implies numerical dimension one abundance},
  author = {Jihao Liu and Zheng Xu},
  journal= {arXiv preprint arXiv:2505.05250},
  year   = {2025}
}

Comments

24 pages. A part of the proof is refined by applying a result of Lazic-Peternell and now the log canonical case of Theorem 1.6 also holds

R2 v1 2026-06-28T23:25:47.704Z