arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0911.2287math.AGmath.CO
收藏

秩二环面向量丛射影化上的Okounkov体

Okounkov bodies on projectivizations of rank two toric vector bundles

José Luis González

摘要:

一个射影簇的整体奥昆科夫体是一个闭的凸锥,它编码了关于簇上每个大线丛的渐近信息。在光滑投射环面簇上的秩二环面向量丛E的情形下,利用其Klyachko滤子给出了P(E)的整体Okounkov体的一个显式描述.特别是,我们表明,这是一个合理的多面体锥,P(E)是一个Mori的梦想空间。

英文摘要:

The global Okounkov body of a projective variety is a closed convex cone that encodes asymptotic information about every big line bundle on the variety. In the case of a rank two toric vector bundle E on a smooth projective toric variety, we use its Klyachko filtrations to give an explicit description of the global Okounkov body of P(E). In particular, we show that this is a rational polyhedral cone and that P(E) is a Mori dream space.

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。

↑