On the reducibility of induced representations for classical p-adic groups and related affine Hecke algebras
On the reducibility of induced representations for classical p-adic groups and related affine Hecke algebras
复制标题
关于经典 p-adic 群和相关仿射 Hecke 代数的诱导表示的可约性
DOI:
10.1007/s11856-019-1857-7
复制
发表时间:
2019
影响因子:
1
通讯作者:
Ciubotaru D
中科院分区:
文献类型:
--
作者:
Ciubotaru D
Letπbe an irreducible smooth complex representation of a general linearp-adic group and letσbe an irreducible complex supercuspidal representation of a classicalp-adic group of a given type, so thatπ⨁σis a representation of a standard Levi subgroup of ap-adic classical group of higher rank. We show that the reducibility of the representation of the appropriatep-adic classical group obtained by (normalized) parabolic induction fromπ⨁σdoes not depend onσ, ifσis “separated” from the supercuspidal support ofπ. (Here, “separated” means that, for each factorρof a representation in the supercuspidal support ofπ, the representation parabolically induced fromρ⨁σis irreducible.) This was conjectured by E. Lapid and M. Tadić. (In addition, they proved, using results ofC. Jantzen, that this induced representation is always reducible if the supercuspidal support is not separated.)More generally, we study, for a given setIof inertial orbits of supercuspidal representations ofp-adic general linear groups, the categoryCI,σof smooth complex finitely generated representations of classicalp-adic groups of fixed type, but arbitrary rank, and supercuspidal support given byσandI, and show that this category is equivalent to a category of finitely generated right modules over a direct sum of tensor products of extended affine Hecke algebras of typeABandDand establish functoriality properties, relating categories with disjointI’s. In this way, we extend results of C. Jantzen who proved a bijection between irreducible representations corresponding to these categories. The proof of the above reducibility result is then based on Hecke algebra arguments, using Kato’s exotic geometry.
登录
查看更多内容
DOI:
10.1090/s1088-4165-02-00167-x
发表时间:
2002
期刊:
Representation Theory of The American Mathematical Society
影响因子:
--
作者:
Mark Reeder
通讯作者:
Mark Reeder
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
D. Barbasch;A. Moy
通讯作者:
A. Moy
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
G. Lusztig
通讯作者:
G. Lusztig
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
Chris Jantzen
通讯作者:
Chris Jantzen
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
V. Heiermann
通讯作者:
V. Heiermann