题目:The limit and boundary characteristic classes in Borel-Moore motivic homology
报告人:孙鹏(湘潭大学)
时间:2024年6月27日(星期四),16:00-17:00
地点:正心楼716
摘要:We define the limit and boundary characteristic classes in Borel-Moore motivic homology through a category-theoretic approach via motivic homotopy theory. We show that the limit characteristic class is equal to the zero-dimensional part of the pro-Chern-Schwartz-MacPherson class defined by Aluffi. A similar construction produces a quadratic refinement of this class in the limit Borel-Moore Milnor-Witt homology. We also compare the boundary characteristic class with Kato-Saito's Swan class. This is a joint work with Fangzhou Jin and Enlin Yang.