中文

初等收缩均为光滑 $\mathbb P^1$-纤维化的 Fano 流形:旗簇的几何刻画

代数几何 2017-09-29 v3

摘要

本文给出了半单代数群的完备旗簇的几何刻画。具体而言,若 XX 是一个 Fano 流形,且其所有初等收缩均为 P1\mathbb P^1-纤维化,则 XX 同构于完备旗流形 G/BG/B,其中 GG 为半单李代数群,BBGG 的 Borel 子群。

关键词

引用

@article{arxiv.1407.3658,
  title  = {Fano manifolds whose elementary contractions are smooth $\mathbb P^1$-fibrations: A geometric characterization of flag varieties},
  author = {Gianluca Occhetta and Luis E. Solá Conde and Kiwamu Watanabe and Jarosław A. Wiśniewski},
  journal= {arXiv preprint arXiv:1407.3658},
  year   = {2017}
}

备注

30 pages, minor issues corrected. To appear in Annali della Scuola Normale Superiore di Pisa, Classe di Scienze