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arXiv 2005.03502math.DG
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具有圆锥奇点的Toric Sasaki-Einstein度量

Toric Sasaki-Einstein metrics with conical singularities

Martin de Borbon, Eveline Legendre

摘要:

我们证明了任何具有光滑紧截面的复曲面Kähler锥都允许一族沿其复曲面因子具有圆锥奇点的Calabi-Yau锥度量。该家庭是参数化的Reeb锥和角度明确给出的Reeb向量场。结果是最优的,在这个意义上,任何环面卡-丘锥度量与圆锥奇点沿环面因子(和光滑的其他地方)属于这个家庭。我们还提供了例子,并解释我们的研究结果在佐佐木-爱因斯坦度量。

英文摘要:

We show that any toric Kähler cone with smooth compact cross-section admits a family of Calabi-Yau cone metrics with conical singularities along its toric divisors. The family is parametrized by the Reeb cone and the angles are given explicitly in terms of the Reeb vector field. The result is optimal, in the sense that any toric Calabi-Yau cone metric with conical singularities along the toric divisor (and smooth elsewhere) belongs to this family. We also provide examples and interpret our results in terms of Sasaki-Einstein metrics.

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