On toric geometry and K-stability of Fano varieties

On toric geometry and K-stability of Fano varieties
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关于 Fano 簇的复曲面几何和 K 稳定性

DOI:
10.1090/btran/82
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发表时间:
2021
期刊:
Transactions of the American Mathematical Society, Series B
影响因子:
--
通讯作者:
Kaloghiros A
Kaloghiros A
中科院分区:
--
文献类型:
--
作者:
Kaloghiros A

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本文介绍了环形法诺品种的变形理论在法诺品种K-(半/聚)稳定性中的一些应用。首先,我们给出了两个具有阻塞变形的k -多稳态环状fano褶皱的例子。在一种情况下,k模空间和堆栈在与环面Fano-fold相关的闭点附近是可约的,而在另一种情况下,它们在与环面Fano-fold相关的闭点附近是不可约的。其次,通过构造k -聚稳定的环形法诺褶皱的退化,研究了两个光滑法诺褶皱变形族一般成员的k -稳定性。参考文献
We present some applications of the deformation theory of toric Fano varieties to K-(semi/poly) stability of Fano varieties. First, we present two examples of K-polystable toric Fano-fold with obstructed deformations. In one case, the K-moduli spaces and stacks are reducible near the closed point associated to the toric Fano-fold, while in the other they are non-reduced near the closed point associated to the toric Fano-fold. Second, we study K-stability of the general members of two deformation families of smooth Fano-folds by building degenerations to K-polystable toric Fano-folds. References
DOI: 10.1007/s00209-010-0780-8
发表时间: 2011-12-01
影响因子: 0.8
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