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Image Milnor Number Formulas for Weighted-Homogeneous Map-Germs
Results in Mathematics ( IF 2.2 ) Pub Date : 2021-07-05 , DOI: 10.1007/s00025-021-01418-1
Irma Pallarés 1 , Guillermo Peñafort Sanchis 1
Affiliation  

We give formulas for the image Milnor number of a weighted-homogeneous map-germ \(({\mathbb {C}}^n,0)\rightarrow ({\mathbb {C}}^{n+1},0)\), for \(n=4\) and 5, in terms of weights and degrees. Our expressions are obtained by a purely interpolative method, applied to a result by Ohmoto. We use our approach to recover the formulas for \(n=2\) and 3 due to Mond and Ohmoto, respectively. For \(n\ge 6\), the method is valid as long as certain multi-singularity conjecture holds.



中文翻译:

加权均质图谱的图像米尔诺数公式

我们给出加权齐次映射胚芽的图像米尔诺数公式\(({\mathbb {C}}^n,0)\rightarrow ({\mathbb {C}}^{n+1},0) \),对于\(n=4\)和 5,在权重和度数方面。我们的表达式是通过纯粹的插值方法获得的,应用于 Ohmoto 的结果。我们使用我们的方法来恢复\(n=2\)和 3 的公式,分别归因于 Mond 和 Ohmoto。对于\(n\ge 6\),只要某些多奇点猜想成立,该方法就有效。

更新日期:2021-07-05
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