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            | Abstract |  
            | Soit 
 le groupe spécial
 orthogonal 
 défini
 sur un corps 
-adique
 
. Soit
 
 une représentation admissible et irreductible de
 
 qui est tempérée et de réduction unipotente. On démontre que
 
 admet un front d’onde et l’on en donne une méthode de calcul dans certains cas
 particuliers.
   Let 
 be a special
 orthogonal group 
 defined over a 
-adic
 field 
. Let
 
 be an admissible irreducible
 representation of 
 which is tempered and of unipotent reduction. We prove that
 
 has a
 wave front set. In some particular cases, we give a method to compute this wave front
 set.
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            | Keywords
                representation of unipotent reduction, unipotent orbit,
                dual orbit, wave front set
               |  
          
            | Mathematical Subject Classification 2010
                Primary: 22E50
               |  
          
            | Milestones
                Received: 22 June 2018
               
                Accepted: 20 November 2018
               
                Published: 22 March 2019
               |  |