报告时间：2022/04/01 10:00-11:30

报告地址：腾讯会议：308-604-522 

报告一：Distinguished Representations of Symplectic Groups over Finite fields

摘要：In this talk, we use a general result of Lusztig to classify all irreducible unipotent representations of symplectic groups over finite fields, distinguished by certain symmetric subgroups. Here the classification is in terms of Lusztig symbol.

报告人简介：张磊博士毕业于明尼苏达大学，现任新加坡国立大学副教授，主要从事数论、表示论研究，在Ann. Math., J. Euro. Math. Soc等期刊发表多项研究成果。

报告二：Hall algebras and quantum Borcherds-Bozec algebras

摘要：Quantum Borcherds-Bozec algebras are introduced recently by Bozec in study of Lusztig’s quiver varieties for quivers with loops, which are generalizations of Drinfeld-Jimbo quantum groups and also quantum Borcherds algebras. In this talk, we shall use semi-derived Ringel-Hall algebras of quivers with loops to realize quantum Borcherds-Bozec algebras. Part of this talk is joint with Ji Lin and Shiquan Ruan.

报告人简介：卢明，四川大学副教授，研究兴趣为代数表示论和李理论。目前主要从事量子群和i-量子群的Hall代数实现和几何实现的研究，在Proc. London Math. Soc., Adv. Math., Comm. Math. Phys.等数学杂志上发表20余篇论文。