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中科院数学与系统科学研究院

数学研究所

 

学术报告会

 

报告人Yihang Zhu (Harvard University)

 The Hasse-Weil zeta functions of orthogonal Shimura varieties

  2017.06.15(星期四),9:30-10:30

  点:晨兴610

 要:Initiated by Langlands, the problem of computing the Hasse-Weil zeta functions of Shimura varieties in terms of automorphic L-functions has received continual study. The strategy proposed by Langlands, later made more precise by Kottwitz, is to compare the Grothendieck-Lefschetz trace formula for Shimura varieties with the trace formula for automorphic forms. In the particular case of orthogonal Shimura varieties, we discuss the proof of Kottwitz's conjectural comparison (between the intersection cohomology of their minimal compactifications and the stable trace formulas). Key ingredients include point counting on these Shimura varieties, Morel's theorem on intersection cohomology, and explicit computation in representation theory mostly for real Lie groups.

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