Analytic test configurations and geodesic rays

Analytic test configurations and geodesic rays
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解析测试配置和测地线

DOI:
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发表时间:
2011
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通讯作者:
D. Nystrom
D. Nystrom
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文献类型:
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作者:
J. Ross;D. Nystrom

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从一条奇点曲线的数据出发,利用勒让德变换,在紧致流形上的充裕线丛L上的局部有界度量空间中构造了弱测地射线.利用这一点,我们将弱测地线与L的分段代数的适当过滤联系起来,特别是对于来自代数测试构型的自然过滤,我们展示了在这种情况下我们如何恢复Phong-Sturm的弱测地线射线。
Starting with the data of a curve of singularity types, we use the Legendre transform to construct weak geodesic rays in the space of locally bounded metrics on an ample line bundle L over a compact manifold. Using this we associate weak geodesics to suitable filtrations of the algebra of sections of L. In particular this works for the natural filtration coming from an algebraic test configuration, and we show how in this case we recover the weak geodesic ray of Phong-Sturm.