从$n$维空间到$(n+1)$维空间的余秩2有限决定映射芽的例子
代数几何
2014-03-28 v3
摘要
我们给出了支持Mond猜想的新例子,该猜想可表述如下:从维空间到维空间的有限决定映射芽的极小万有展开所需参数个数小于(若映射芽是加权齐次的,则小于等于)该映射芽的稳定扰动像的阶同调群的秩。我们给出了从3维空间到4维空间的满足该猜想的余秩2有限决定映射芽的例子。我们引入了一种新型增广,从维的给定映射芽生成维的有限决定映射芽序列。基于我们的例子,我们给出了和维的更多例子,并验证了猜想。
引用
@article{arxiv.1202.4992,
title = {Examples of finitely determined map-germs of corank 2 from $n$-space to $(n+1)$-space},
author = {Ayse Altintas},
journal= {arXiv preprint arXiv:1202.4992},
year = {2014}
}
备注
v3: final version, to appear in International Journal of Mathematics. -- v2: 14 pages, shortened and revised: section on map-germs from 3-space to 4-space removed, the examples kept; remark 4.11 corrected, now it is remark 4.4; remark 4.12 revised; replaced the term 'reduction' with 'augmentation'