报告人：王之程（吉林大学）

报告时间：2026年9月28日（星期一）10:30-12:00

报告地点：东32楼216室

报告摘要：Let G be a finite symplectic or orthogonal group over a finite field of odd characteristic. For an irreducible representation of G, its rational wavefront set can be defined in terms of generalized Gelfand–Graev representations associated with rational nilpotent orbits. In this talk, I will discuss a description of rational wavefront sets using the descent method. In particular, I will explain how their maximal elements are related to the unique stable wavefront orbit and how the full rational wavefront set is determined by its maximal elements. For unipotent representations, I will also describe the maximal rational orbits in terms of Lusztig’s canonical quotient.    

报告人简介：王之程，吉林大学数学学院教授、博士生导师。2021年博士毕业于浙江大学，2024年9月起任教于吉林大学。主要从事表示论的研究，方向包括有限域上典型群的 Gan–Gross–Prasad 问题等。成果发表于 Advances in Mathematics、Trans. AMS等期刊。

邀请人：张鸿锋