کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4593719 | 1630668 | 2015 | 13 صفحه PDF | دانلود رایگان |
Let π be a depth-zero irreducible admissible representation of a connected reductive p-adic group G. Let H be the group of fixed points of an involution θ of G. We relate H-distinction of π to existence of minimal K-types of π that exhibit particular symmetry properties relative to θ. In addition, we show that when π is H-distinguished, then (up to conjugacy) the support of π is of the form (M,τ)(M,τ) where M is a θ-stable Levi subgroup of G and τ is a depth-zero irreducible supercuspidal representation of M. Moreover, τ contains a minimal K -type (Mx,ρ)(Mx,ρ) such that MxMx is a θ-stable maximal parahoric subgroup of M and ρ is the inflation of a distinguished cuspidal representation of the quotient of MxMx by its pro-unipotent radical.
Journal: Journal of Number Theory - Volume 146, January 2015, Pages 506–518