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Swan classes of l-adic sheaves - 阳恩林博士(德国Regensburg大学)

作者:   来源:  时间:2018-03-21

题目:Swan classes of l-adic sheaves.

报告人:阳恩林博士(德国Regensburg大学)

摘要:

The Grothendieck-Ogg-Shafarevich formula for curves is generalized to higher dimensional smooth varieties by using Swan classes and also by using characteristic cycles. Following a suggestion by T. Saito, we show that the Swan classes can be computed in terms of characteristic cycles on proper smooth surfaces over finite fields. This is a joint work with Yigeng Zhao and Umezaki.

 

时间:3月21日(周三)下午4:30-5:30

地点:首师大新教二楼927教室

 

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