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arXiv 1907.00543math.AG
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环面平坦族、赋值及对射影化环面向量丛的应用

Toric flat families, valuations, and applications to projectivized toric vector bundles

Kiumars Kaveh, Christopher Manon

摘要:

利用分段线性函数半域的赋值概念,利用扇间的分段线性映射,给出了环面簇基上有限型环面等变平坦族的一个分类.作为结果,我们得到了一个分类的环面向量丛措辞的热带线性空间。我们使用这些工具,给出了一个表征的Mori梦空间属性的射影复曲面向量丛。

英文摘要:

Using the notion of a valuation into the semifield of piecewise linear functions, we give a classification of torus equivariant flat families of finite type over a toric variety base, by certain piecewise linear maps between fans. As a consequence we derive a classification of toric vector bundles phrased in terms of tropicalized linear spaces. We use these tools to give a characterization of the Mori dream space property for a projectivized toric vector bundle.

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