Stability and coercivity for toric polarizations

Stability and coercivity for toric polarizations
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发表时间:
2016-10
期刊:
arXiv: Differential Geometry
影响因子:
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通讯作者:
Tomoyuki Hisamoto
Tomoyuki Hisamoto
中科院分区:
其他
文献类型:
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作者:
Tomoyuki Hisamoto

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我们证明,当且仅当 K 能量泛函以环面作用为强制模时,环面偏振流形在环面意义上是一致 K 稳定的。我们的关键成分描述了简化的 J 泛函沿着环面等变测试配置的斜率。它还提供了通用极化流形的公式。我们解释在这种情况下,子环面(实际上是中心)如何控制整个自同构群。
We prove that a toric polarized manifold is uniformly K-stable in the toric sense if and only if the K-energy functional is coercive modulo the torus action. Our key ingredient describes slope of the reduced J-functional along a torus-equivariant test configuration. It further provides a formulation for general polarized manifolds. We explain how in this situation the sub-torus, actually the center, controls the whole automorphism group.