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arXiv math/9412206math.RTmath.NT
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$R$ --群和相似群的椭圆表示

$R$--groups and elliptic representations for similitude groups

David Goldberg

摘要:

研究了特征为零的$p$ \snug -adic群上定义的非退化辛、埃尔米特或分裂正交形式的相似群的回火谱。利用$R$ \snug -群对由真抛物子群的离散级数导出的表示的分支进行了分类.证明了多重性1。确定了调和椭圆谱,并确定了在给定的诱导表示中出现的椭圆特征之间的关系。描述了那些非椭圆的、非完全由椭圆调和表示导出的不可约调和表示。

英文摘要:

The tempered spectrum of the similitude groups of non-degenerate symplectic, hermitian, or split orthogonal forms defined over $p$\snug-adic groups of characteristic zero is studied. The components of representations induced from discrete series of proper parabolic subgroups are classified in terms of $R$\snug-groups. Multiplicity one is proved. The tempered elliptic spectrum is identified, and the relation between elliptic characters appearing in a given induced representation is determined. Those irreducible tempered representations which are not elliptic and not fully induced from elliptic tempered representations are described.

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