通过 2-Calabi-Yau 范畴的 Deligne-Simpson 问题
代数几何
2026-04-14 v2 表示论
摘要
我们给出了 Crawley-Boevey 在其 Deligne-Simpson 问题解法中所需条件的简洁性证明。该证明依赖于 Davison 关于 2-Calabi-Yau 范畴的局部邻域定理,以及 Crawley-Boevey 关于存在具有指定穿孔处单值化共轭类的局部系统的充分条件。
引用
@article{arxiv.2604.06991,
title = {The Deligne-Simpson problem via 2-Calabi-Yau categories},
author = {Lucien Hennecart},
journal= {arXiv preprint arXiv:2604.06991},
year = {2026}
}
备注
There is a mistake in the way Theorem 3.3 is formulated, leading to a gap in the proof, as it currently assumes implicitly connectedness of some moduli spaces