地点：海纳苑2幢204室

时间：3月2日，16:00 - 17:20

报告人：金方舟 Fangzhou Jin（同济大学）

摘要:  

Pretalk: Introduction to intersection theory

Research talk: Towards an intersection theory with quadratic forms

Abstract: Intersection theory via algebraic cycles provides important tools in enumerative geometry. Recent advances in motivic homotopy theory have led to an enriched enumerative geometry with quadratic forms. I will discuss a corresponding intersection theory with applications in topology, geometry and arithmetics. Based on joint work with F. Déglise, N. Feld and A. Khan.