English

On log minimal models and Zariski decompositions II

Algebraic Geometry 2013-02-19 v1

Abstract

We continue our study of the relation between log minimal models and various types of Zariski decompositions. Let (X,B)(X,B) be a projective log canonical pair. We will show that (X,B)(X,B) has a log minimal model if either KX+BK_X+B birationally has a Nakayama-Zariski decomposition with nef positive part, or that KX+BK_X+B is big and birationally it has a Fujita or CKM Zariski decomposition. Along the way we introduce polarized pairs (X,B+P)(X,B+P) where (X,B)(X,B) is a usual projective pair and PP is nef, and study the birational geometry of such pairs.

Keywords

Cite

@article{arxiv.1302.4015,
  title  = {On log minimal models and Zariski decompositions II},
  author = {Caucher Birkar and Zhengyu Hu},
  journal= {arXiv preprint arXiv:1302.4015},
  year   = {2013}
}

Comments

17 pages

R2 v1 2026-06-21T23:27:29.457Z