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The tempered spectrum of quasi-split classical groups III: The odd orthogonal groups
Ist Teil von
Forum mathematicum, 2014-07, Vol.26 (4), p.1029-1069
Ort / Verlag
Berlin: De Gruyter
Erscheinungsjahr
2014
Quelle
De Gruyter journals
Beschreibungen/Notizen
We study the tempered spectrum of special orthogonal groups of odd degree over
-adic fields of characteristic zero. Residues of intertwining operators for representations parabolically induced from arbitrary maximal parabolic subgroups are determined in terms of non-vanishing of weighted sums of twisted orbital integrals. This is connected with the theory of twisted endoscopy, and poles of the Langlands
-functions, in particular, with the Rankin product
-function between irreducible (generic) supercuspidal representations of the classical group SO
) and those of GL
). These poles are described for, any
and
, explicitly in terms of twisted endoscopy. Moreover, we show these poles describe precisely when a supercuspidal representation of GL
) is the local component of the transfer from a special odd orthogonal group.