English

Effective non-vanishing and Mukai type conjecture

Algebraic Geometry 2023-06-29 v2

Abstract

We introduce some invariants of Fano varieties and propose a Mukai-type conjecture which characterizes the product of projective spaces. Moreover, we prove that the Ambro--Kawamata effective non-vanishing conjecture implies the Mukai-type conjecture.

Cite

@article{arxiv.2306.08841,
  title  = {Effective non-vanishing and Mukai type conjecture},
  author = {Yoshinori Gongyo},
  journal= {arXiv preprint arXiv:2306.08841},
  year   = {2023}
}

Comments

9 pages, no figure, v2: fix some mistakes in the definitions and typos

R2 v1 2026-06-28T11:05:32.731Z