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Branching Laws for Some Unitary Representations of SL(4,R)
Репозиторій DSpace/Manakin
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- Фізико-технічні та математичні науки
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- Відділення математики
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- Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)
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- Symmetry, Integrability and Geometry: Methods and Applications, 2008, том 4
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Branching Laws for Some Unitary Representations of SL(4,R)
Інший ID:
2000 Mathematics Subject Classification: 22E47; 11F70
Посилання:
Branching Laws for Some Unitary Representations of SL(4,R) / B. Ørsted, B. Speh // Symmetry, Integrability and Geometry: Methods and Applications. — 2008. — Т. 4. — Бібліогр.: 28 назв. — англ.
Підтримка:
This paper is a contribution to the Proceedings of the 2007 Midwest Geometry Conference in honor of Thomas P. Branson. We would like to thank T. Kobayashi for helpful discussions during a visit of the second author at RIMS and for the suggestion to also include the restriction to GL(2, C). The second author would also like to thank the University of Southern Denmark in Odense for its hospitality during which part of the research was completed. BS partially supported by NSF grant DMS-0070561.
Дата:
2008
Переглядів:
578
Завантажень:
171
Анотація:
In this paper we consider the restriction of a unitary irreducible representation of type Aq(λ) of GL(4,R) to reductive subgroups H which are the fixpoint sets of an involution. We obtain a formula for the restriction to the symplectic group and to GL(2,C), and as an application we construct in the last section some representations in the cuspidal spectrum of the symplectic and the complex general linear group. In addition to working directly with the cohmologically induced module to obtain the branching law, we also introduce the useful concept of pseudo dual pairs of subgroups in a reductive Lie group.
