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arXiv 2004.12172math.AGmath.NT
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相交数的局部恒常性

Local Constancy of Intersection Numbers

Andreas Mihatsch

摘要:

我们证明了,在某些情况下,相交数的形式概形,在profinite家庭,在局部不断变化的参数。为此,我们定义的产品$S\times M$的profinite集$S$的局部形式概形$M$和研究其上的交叉。我们的应用是W的算术基本引理。张的结果有助于消除限制在其最近的证明,比照。arXiv:1909.02697。

英文摘要:

We prove that, in certain situations, intersection numbers on formal schemes that come in profinite families vary locally constantly in the parameter. To this end, we define the product $S\times M$ of a profinite set $S$ with a locally noetherian formal scheme $M$ and study intersections thereon. Our application is to the Arithmetic Fundamental Lemma of W. Zhang where the result helps to remove a restriction in its recent proof, cf. arXiv:1909.02697.

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