A new deterministic method for computing Milnor number of an ICIS

A new deterministic method for computing Milnor number of an ICIS
复制标题

计算ICIS Milnor数的新确定性方法

DOI:
10.1007/978-3-030-85165-1_22
复制
发表时间:
2021
期刊:
Lecture Notes in Computer Science
影响因子:
--
通讯作者:
S. Tajima and K. Nabeshima,
S. Tajima and K. Nabeshima,
中科院分区:
--
文献类型:
--
作者:
S. Tajima and Y. Umeta;S. Tajima and K. Nabeshima;S. Tajima and Y. Umeta;S. Tajima and K. Nabeshima,

文献摘要

相似文献

在符号计算的背景下考虑孤立完全交集奇点 (ICIS) 的 Milnor 数。基于经典的 Lê-Greuel 公式,引入了一种计算 Milnor 数的新方法。我们方法的关键思想是辅助不定式的使用以及辅助不定式有理函数领域中系数的局部上同调概念。描述了所得算法并给出了一些示例以进行说明。
The Milnor number of an isolated complete intersection singularity (ICIS) is considered in the context of symbolic computation. Based on the classical Lê-Greuel formula, a new method for computing Milnor numbers is introduced. Key ideas of our approach are the use of auxiliary indeterminates and the concept of local cohomology with coefficients in the field of rational functions of auxiliary indeterminates. The resulting algorithm is described and some examples are given for illustration.