Rationality of Varieties

Rationality of Varieties
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品种合理性

DOI:
10.1007/978-3-030-75421-1_11
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发表时间:
2021
期刊:
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影响因子:
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通讯作者:
Nicaise J
Nicaise J
中科院分区:
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文献类型:
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作者:
Nicaise J

文献摘要

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我们构建了一个升级的动机体积保持跟踪的Grothendieck环的品种的尺寸。这产生了一个统一的细化motivic体积和它的双理性版本介绍了Kontsevich和Tschinkel证明专业化的双理性类型。我们还提供了几个明确的例子,这种技术所产生的稳定的理性障碍。
We construct an upgrade of the motivic volume by keeping track of dimensions in the Grothendieck ring of varieties. This produces a uniform refinement of the motivic volume and its birational version introduced by Kontsevich and Tschinkel to prove the specialization of birational types. We also provide several explicit examples of obstructions to stable rationality arising from this technique.