报告人：胡勇，南方科学技术大学

标题：Chow groups of quadrics in characteristic 2

时间：2021年6月16日，星期三，下午14:30-15:30

地点：腾讯会议，会议ID：798 664 858

摘要：In the 1990's, Karpenko made a systematic study of Chow groups of smooth projective quadrics in characteristic different from 2, by using Swan's work on the K-theory of quadrics. His results have soon found important applications in computation of unramified cohomology of quadrics, and have played a key role in Izhboldin's remarkable theorem that the u-invariant of a field can be 9. In this talk, I will sketch some key ingredients in the Karpenko's results and explain how to extend his results to the characteristic 2 case. This is based on a joint work with Ahmed Laghribi and Peng Sun.

邀请人：赵立璐