arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1302.4015math.AG
收藏

关于对数极小模型和Zebraki分解II

On log minimal models and Zariski decompositions II

Caucher Birkar, Zhengyu Hu

摘要:

我们继续我们的研究之间的关系日志极小模型和各种类型的Zagliki分解。设$(X,B)$是一个射影对数典型对。我们将证明,如果$K_X+B$具有带有nef正部分的Nakayama-Zariski分解,或者$K_X+B$很大并且具有Fujita或CKM Zariski分解,则$(X,B)$具有log极小模型。在此过程中,我们引入极化对$(X,B+P)$,其中$(X,B)$是一个常见的投影对和$P$是nef,并研究这种对的双有理几何。

英文摘要:

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

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑