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Ramification of nearby cycles over a geometric base

组织者

刁晗生 , 杜衡 , 胡悦科 , Bin Xu , Yihang Zhu

演讲者

胡昊宇

时间

2025年10月20日 10:00 至 11:00

地点

Shuangqing-B627

摘要

In this talk, we discuss a ramification bound of nearby cycle complexes for étale sheaves over a DVR base of equal characteristic with imperfect residue field. We also explain an application of the boundedness result to Betti numbers of étale sheaves on affine spaces. This is a joint work with Jean-Baptiste Teyssier.