Lie Algebras/Harmonic Analysis
On a branching law of unitary representations and a conjecture of Kobayashi
[Sur une loi de branchement des représentations unitaires et une conjecture de Kobayashi]
Comptes Rendus. Mathématique, Tome 348 (2010) no. 17-18, pp. 959-962.

Dans cette Note, nous considérons l'équivalence de différentes propriétés de la restriction d'une représentation unitaire irréductible d'un groupe de Lie réel réductif á un sous-groupe réductif fermé. Comme corollaire, nous prouvons une forme faible d'une conjecture de Kobayashi.

In this Note we consider the equivalence of different properties of the restriction of an irreducible unitary representation of a real reductive group to a closed reductive subgroup. As a corollary, we prove a weak form of a conjecture of Kobayashi.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2010.09.006
Zhu, Fuhai 1 ; Liang, Ke 1

1 School of Mathematical Sciences and LPMC, Nankai University, Tianjin 300071, China
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Zhu, Fuhai; Liang, Ke. On a branching law of unitary representations and a conjecture of Kobayashi. Comptes Rendus. Mathématique, Tome 348 (2010) no. 17-18, pp. 959-962. doi : 10.1016/j.crma.2010.09.006. http://www.numdam.org/articles/10.1016/j.crma.2010.09.006/

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[7] Kobayashi, T. Branching problems of unitary representations, Proceedings of the International Congress of Mathematicians, vol. II, Higher Ed. Press, Beijing, 2002, pp. 615-627

[8] Kobayashi, T. Restrictions of unitary representations of real reductive groups, Lie Theory: Unitary Representations and Compactifications of Symmetric Spaces, Progr. Math., vol. 29, Birkhäuser Boston, Boston, MA, 2005, pp. 139-207

[9] Kostant, B. On the tensor product of a finite and an infinite dimensional representation, J. Funct. Anal., Volume 20 (1975), pp. 257-285

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