题目：Subvarieties of Abelian Varieties

报告人：周潇翔，汉堡大学

时间：2026年11月20日（周五）上午9:00-10:00

地点：新楼312

摘要：How can we study the geometry of subvarieties of abelian varieties? I will introduce the tangent and conormal Gauss maps, focusing on their degrees and the monodromy of the conormal map. I will then describe how weighted sums of points in conormal Gauss fibres produce new subvarieties whose conormal varieties occur in characteristic cycles, and present results on their dimensions and homology classes. If time permits, I will discuss two conjectures motivated by symmetry and counterexamples found with AI assistance.