报告地点：行健楼学术活动室665

邀请人：周海燕教授

Abstract: The calculation of Betti numbers of étale sheaves has many applications in number theory. For example, the study of exponential sums requires Betti numbers of Artin-Schreier type sheaves on affine spaces. In this talk, we discuss a boundedness result for Betti numbers of étale sheaves with wild ramifications on affine and smooth schemes. This is a joint work with Jean-Baptiste Teyssier.