On the singularities of residual intertwining operators
On the singularities of residual intertwining operators
复制标题
关于剩余缠结算子的奇点
DOI:
10.1007/pl00001649
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
W. Müller
中科院分区:
文献类型:
--
作者:
W. Müller
Abstract. Let G be a reductive algebraic group defined over
$ {\Bbb Q} $. Let P, P' be parabolic subgroups of G, defined over
$ {\Bbb Q} $, and let
$ t \in W({\frak a}_{P}, {\frak a}_{P'}) $. In this paper we study the intertwining operator
$ M_{P' \vert P}(t,\lambda),\,\lambda \in {\frak a}^*_{P,{\Bbb C}} $, acting in corresponding spaces of automorphic forms. One of the main results states that each matrix coefficient of
$ M_{P' \vert P}(t,\lambda) $ is a meromorphic function of order
$ \le n + 1 $, where n = dim G. Using this result, we further investigate the rank one intertwining operators, in particular, we study the distribution of their poles.