某些不规则奇点的可积形变与退化
代数几何
2022-08-09 v4
摘要
受 Cotti、Dubrovin 和 Guzzetti 的文章 arXiv:1706.04808 启发，我们将 Malgrange 关于不规则奇点可积形变的结果推广到退化情形。我们给出其对某些 Birkhoff 问题解的可积形变的一个应用，并将其应用于 Frobenius 流形的构造。
引用
@article{arxiv.1711.08514,
title = {Integrable deformations and degenerations of some irregular singularities},
author = {Claude Sabbah},
journal= {arXiv preprint arXiv:1711.08514},
year = {2022}
}
备注
V2: 27 pages, 1 figure, some errors corrected, presentation improved due to a recent result of J.-B. Teyssier arXiv:1802.00289. V3: 35 pages. Revised version to appear in Publ. RIMS, Kyoto University. Introduction improved with modivations added. Improvements of the presentation of some of th results. Previous Section 4.b deleted as being not necessary. V4: final version to be published