报告人：Clifton Cunningham（加拿大卡尔加里大学）

报告时间：2026年5月25日（星期一）10:30-12:00 、15:00-16:30

报告地点：东32楼216室

报告摘要：While Arthur packets provide a decomposition of the discrete part of the L2 spectrum of automorphic representations of classical groups, their local components may be expressed purely in terms of the vanishing cycles of perverse sheaves on (part of) the stack of Langlands parameters. In this talk we explain that this follows from geometrizing twisted endoscopic transfer, done in great generality in joint work with Alexander Hazeltine, Baiying Liu,Chi-Heng Lo, Mishty Ray, Bin Xu and Jörg Schürmann. The result is a vast generalization of local Arthur packets, also providing a new tool for the study of the category of smooth representations of local groups.

邀请人：张庆