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arXiv 1208.3597math.AGmath.DG
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对称Fano T簇上的Kahler-Einstein度量

Kahler-Einstein metrics on symmetric Fano T-varieties

Hendrik Süß

摘要:

我们将具有环面作用的簇的全局对数典范阈值与其商的全局对数典范阈值联系起来。我们将其应用到某些Fano簇,并使用田的标准,以证明存在的Kahler-Einstein度量。特别是,我们得到了简单的例子Fano三倍是Kahler-Einstein,但承认变形没有Kahler-Einstein度量。

英文摘要:

We relate the global log canonical threshold of a variety with torus action to the global log canonical threshold of its quotient. We apply this to certain Fano varieties and use Tian's criterion to prove the existence of Kahler-Einstein metrics on them. In particular, we obtain simple examples of Fano threefolds being Kahler-Einstein but admitting deformations without Kahler-Einstein metric.

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。

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