English

Notes on toric varieties from Mori theoretic viewpoint, II

Algebraic Geometry 2020-08-19 v2

Abstract

We give new estimates of lengths of extremal rays of birational type for toric varieties. We can see that our new estimates are the best by constructing some examples explicitly. As applications, we discuss the nefness and pseudo-effectivity of adjoint bundles of projective toric varieties. We also treat some generalizations of Fujita's freeness and very ampleness for toric varieties.

Keywords

Cite

@article{arxiv.1710.05151,
  title  = {Notes on toric varieties from Mori theoretic viewpoint, II},
  author = {Osamu Fujino and Hiroshi Sato},
  journal= {arXiv preprint arXiv:1710.05151},
  year   = {2020}
}

Comments

22 pages, v2: minor revisions

R2 v1 2026-06-22T22:13:30.540Z