余家富研究员学术报告(12月6日)

时间:2019-12-02   浏览:13

告题目:

Automorphism groups of generic supersingular abelian 3-folds

报告人:余家富 研究员

报告人单位:台湾中研院数学研究所

报告时间:2019年12月6日,下午14:00-15:00

报告地点:四牌楼逸夫建筑馆1502


报告摘要:Consider the moduli space of principally polarized supersingular abelian 3-folds. We are interested in how the endomorphism rings and automorphism groups change when abelian varieties vary. We will show when p>2, there is an explicit open dense subset such that all automoprhism groups are C_2 over this range and investigate possible automorphism groups in the range of a=1. This is joint work with Velentijn Karamaker and Fuetaro Yobuko.


  报告人介绍:

  余家富,台湾中央研究院研究员,1999年博士毕业于宾夕法尼亚大学。其主要从事算术代数几何研究,在志村簇约化的几何与算术性质、有限域上阿贝尔簇的计数等课题有重要贡献。其多次应邀在ICCM, Oberwolfach workshop等重要学术会议演讲,并在JAG、Math. A.、Crelle等顶尖杂志发表多篇论文。