arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1012.4959math.AG
收藏

G-Fano 三维簇,I

G-Fano threefolds, I

Moscow State University(莫斯科大学);Laboratory of Algebraic Geometry, SU-HSE(高等经济学院代数几何实验室)

Yuri Prokhorov

AI总结:

分类满足特定条件的Fano三维簇:仅具有终端奇点、典范类为Cartier且可被2整除,且对某群G作用,Weil除子类群的G不变部分秩为1。

摘要:

我们分类了仅具有终端奇点的Fano三维簇,其典范类为Cartier且可被2整除,并满足一个附加假设:对某群$G$的作用,Weil除子类群的$G$-不变部分秩为1。特别地,我们找到了许多具有“大量”对称性的Fano三维簇的例子。

英文摘要:

We classify Fano threefolds with only terminal singularities whose canonical class is Cartier and divisible by 2, and satisfying an additional assumption that the $G$-invariant part of the Weil divisor class group is of rank 1 with respect to an action of some group $G$. In particular, we find a lot of examples of Fano 3-folds with "many" symmetries.

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。

↑