Zappatic稳定曲面的形变及其伽罗瓦覆盖
代数几何
2024-04-08 v3
摘要
本文考虑一些代数曲面,它们可以形变为具有唯一En型奇点的平面Zappatic稳定曲面。我们证明,对于n ≥ 4,这些曲面的伽罗瓦覆盖都是单连通的且为一般型,并给出了此类伽罗瓦覆盖的陈数公式。作为应用,我们证明当n > 30时此类曲面不存在。此外,Kollár在附录5中将结果改进为n > 9。
关键词
引用
@article{arxiv.2402.06017,
title = {Deformations of Zappatic stable surfaces and their Galois covers},
author = {Meirav Amram and Cheng Gong and JiaLi Mo},
journal= {arXiv preprint arXiv:2402.06017},
year = {2024}
}
备注
The paper includes an appendix written by Janos Kollar