arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv math/0602527math.AG
收藏

超平面排列的Bernstein-Sato多项式

Bernstein-Sato polynomials of hyperplane arrangements

Morihiko Saito

摘要:

我们表明,Bernstein-Sato多项式(即,b-函数)的超平面安排与一个简化方程是可计算的Malgrange公式的推广相结合的理论,Aomoto复杂由于埃斯诺特,Schechtman,Terao,Varchenko,和Viehweg在某些情况下。我们一般地证明了根大于-2,且根-1的重数等于周围空间的(有效)维数。我们还给出了根的重数的估计在稠密的边缘的安排的重数,并提供了一种方法来计算Bernstein-Sato多项式至少在3个变量的情况下,度最多为7和通用的重数最多为3。利用我们的论证,我们可以终止Denef和Loeser关于拓扑zeta函数与约化超平面排列的Bernstein-Sato多项式之间关系的一个猜想的证明。

英文摘要:

We show that the Bernstein-Sato polynomial (that is, the b-function) of a hyperplane arrangement with a reduced equation is calculable by combining a generalization of Malgrange's formula with the theory of Aomoto complexes due to Esnault, Schechtman, Terao, Varchenko, and Viehweg in certain cases. We prove in general that the roots are greater than -2 and the multiplicity of the root -1 is equal to the (effective) dimension of the ambient space. We also give an estimate of the multiplicities of the roots in terms of the multiplicities of the arrangement at the dense edges, and provide a method to calculate the Bernstein-Sato polynomial at least in the case of 3 variables with degree at most 7 and generic multiplicities at most 3. Using our argument, we can terminate the proof of a conjecture of Denef and Loeser on the relation between the topological zeta function and the Bernstein-Sato polynomial of a reduced hyperplane arrangement in the 3 variable case.

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。

↑