当前位置: 首页 > 学术报告
Orbits and representations of Lie type groups over local rings
陈哲(汕头大学)
2019年4月25日下午2:00 - 3:00  闵行数学楼402报告厅

摘要:In this talk I would start by introducing classical Deligne--Lusztig theory via concrete examples. Then I discuss its generalisation for reductive groups over discrete valuation rings. In this latter case, besides the Deligne--Lusztig theory one also has a clifford theoretic approach to their representations, using orbits of the Lie algebras; I will report some recent progress concerning the interaction between higher Deligne--Lusztig representations and these orbits.