Journal of Number Theory ( IF 0.6 ) Pub Date : 2021-02-23 , DOI: 10.1016/j.jnt.2021.01.017 Dubravka Ban , Kwangho Choiy , David Goldberg
We study the unitary principal series of the split group , where F is a p-adic field. Let be a unitary character of a maximal F-split torus of , and let χ be its restriction to . The R-groups and of the corresponding principal series representations fit in the exact sequence . We give a complete answer to the question of splitting of this exact sequence. We also prove that the multiplicity is one when irreducible constituents in unitary principal series are restricted from to . Further, based on Keys' result, we prove Arthur's conjecture on R-groups for unitary principal series of .
中文翻译:
自旋群的单一主系列的R-群
我们研究分裂组的一元本因级数 ,其中F是p- adic字段。让是最大F分裂环面的单一特征 的 ,令χ为它对。在[R -groups 和 相应的主系列表示形式中的一个按精确顺序拟合 。对于这个精确序列的分割问题,我们给出了完整的答案。我们还证明了,当单一主体级数中的不可约成分被限制于 到 。此外,根据Keys的结果,我们证明了Arthur关于R的unit-群的猜想。。