Séminaires : Séminaire Groupes Réductifs et Formes Automorphes

Equipe(s) : fa, tn,
Responsables :Alexis Bouthier, Francesco Lemma
Email des responsables : alexis.bouthier@imj-prg.fr, francesco.lemma(at)imj-prg.fr
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Description

Orateur(s) Yannan QIU - Columbia-IHES,
Titre Local integrals of matrix coefficients
Date05/12/2011
Horaire10:30 à 11:30
Diffusion
RésumeThe Refined Global Gross-Prasad Conjecture expresses periods of tempered representations as the product of certain $L$-values and certain local integrals of matrix coefficients. When the global representations are non-tempered, these local integrals could be divergent and we suggest that they be regularized using spherical height functions. As an example, we study the $SO(4)$-periods of $SO(4) \times SO(5)$ representations when the $SO(5)$-representations are non-tempered and of Saito-Kurokawa type; using theta lifting and our regularization technique, we obtain two precise global period formulas.
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