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arXiv 1509.09079math.AGmath.NT
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度量和δ-形式的正性性质

Positivity properties of metrics and delta-forms

Walter Gubler, Klaus Kuennemann

摘要:

在以前的工作中,我们已经介绍了三角形的代数簇的Berkovich分析,以研究顺利或正式度量通过其相关的陈三角形。本文研究了三角形和三角形电流的正性性质。这导致了各种plurisubharmonicity概念连续度量线丛。在一个正式的度量的情况下,我们表明,许多这些积极的概念是相当于张的半积极性。对于分段光滑度量,我们证明了多次调和性可以在凸几何的热带图上进行检验。我们将其应用到光滑度量,规范度量的阿贝尔簇和环面度量的环面品种。

英文摘要:

In previous work, we have introduced delta-forms on the Berkovich analytification of an algebraic variety in order to study smooth or formal metrics via their associated Chern delta-forms. In this paper, we investigate positivity properties of delta-forms and delta-currents. This leads to various plurisubharmonicity notions for continuous metrics on line bundles. In the case of a formal metric, we show that many of these positivity notions are equivalent to Zhang's semipositivity. For piecewise smooth metrics, we prove that plurisubharmonicity can be tested on tropical charts in terms of convex geometry. We apply this to smooth metrics, to canonical metrics on abelian varieties and to toric metrics on toric varieties.

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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