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arXiv 1111.1954math.AGmath.LO
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Monodromy与Lefschetz不动点公式

Monodromy and the Lefschetz fixed point formula

E. Hrushovski, F. Loeser

摘要:

我们给出了一个新的证明-不使用奇点的分解-的一个公式Denef和第二作者表示莱夫谢茨数迭代的单值函数的光滑复代数簇的欧拉示性数的空间截断弧。我们的证明使用了非阿基米德空间的l-adic上同调,motivic积分和有穷级自同构的Lefschetz不动点公式。我们还考虑了由于Nicaise和Sebag的推广,并在本文的最后,我们讨论了与motivic塞尔不变和motivic米尔诺纤维连接。

英文摘要:

We give a new proof - not using resolution of singularities - of a formula of Denef and the second author expressing the Lefschetz number of iterates of the monodromy of a function on a smooth complex algebraic variety in terms of the Euler characteristic of a space of truncated arcs. Our proof uses l-adic cohomology of non-archimedean spaces, motivic integration and the Lefschetz fixed point formula for finite order automorphisms. We also consider a generalization due to Nicaise and Sebag and at the end of the paper we discuss connections with the motivic Serre invariant and the motivic Milnor fiber.

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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