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arXiv 0908.2609math.COmath.ACmath.AG
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洛朗多项式与欧拉数

Laurent polynomials and Eulerian numbers

Daniel Erman, Gregory G. Smith, Anthony Várilly-Alvarado

摘要:

Duistermaat和van der Kallen证明了不存在幂均为零的常数项的非平凡复Laurent多项式。受此启发,Sturmfels提出了两个问题:一般洛朗多项式的常数项是否构成一个正则序列?如果是,那么相关的零维理想的度是多少?在本文中,我们证明了欧拉数提供了第二个问题的答案。证明涉及重新解释的问题,在复曲面几何。

英文摘要:

Duistermaat and van der Kallen show that there is no nontrivial complex Laurent polynomial all of whose powers have a zero constant term. Inspired by this, Sturmfels posed two questions: Do the constant terms of a generic Laurent polynomial form a regular sequence? If so, then what is the degree of the associated zero-dimensional ideal? In this note, we prove that the Eulerian numbers provide the answer to the second question. The proof involves reinterpreting the problem in terms of toric geometry.

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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