表示论研讨班：The explicit algebraisation of higher level Deligne-Lusztig representations

中科院数学与系统科学研究院

数学研究所

学术报告

表示论研讨班

报告人：陈哲 教授（汕头大学）   

题  目：The explicit algebraisation of higher level Deligne-Lusztig representations

时  间：2023.12.28（星期四）14:30-15:30

地  点：数学院南楼N803

摘  要：In this talk we discuss an algebraisation theorem of Deligne--Lusztig representations of connected reductive groups over complete discrete valuation rings, at any level>1, proved in a recent joint work with Stasinski. At the beginning, we shall focus on GL_n to illustrate the conditions and the results using the notion of orbits. Then we explain how to pass from GL_n to the general case. Time permitting, we shall also explain the main ideas of the proof.