学术报告

Fundamental Classes in Motivic Homotopy Theory

阅读次数:748

题目:Fundamental Classes in Motivic Homotopy Theory
报告人:金方舟 博士(Uiniversity Duisburg-Essen Department of Mathematics)
地点:致远楼101室
时间:2019年2月28日 16:00-17:00
摘要:We develop a Fulton-style intersection theory in motivic homotopy categories, which is expressed in terms of the fundamental class in twisted bivariant groups. By introducing a general notion of Euler classes of vector bundles, we prove a formula of excess intersection in this framework; as an application, we deduce a motivic Gauss-Bonnet formula computing the Euler characteristic. This is a joint work with F. Déglise and A. Khan.

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