A Capelli Harish-Chandra homomorphism
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Abstract:
For a real reductive dual pair the Capelli identities define a homomorphism $\mathcal {C}$ from the center of the universal enveloping algebra of the larger group to the center of the universal enveloping algebra of the smaller group. In terms of the Harish-Chandra isomorphism, this map involves a $\rho$-shift. We view a dual pair as a Lie supergroup and offer a construction of the homomorphism $\mathcal {C}$ based solely on the Harish-Chandra’s radial component maps. Thus we provide a geometric interpretation of the $\rho$-shift.References
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Additional Information
- Tomasz Przebinda
- Affiliation: Department of Mathematics, University of Oklahoma, Norman, Oklahoma 73019
- MR Author ID: 257122
- Email: tprzebin@crystal.math.ou.edu
- Received by editor(s): September 4, 2002
- Published electronically: August 26, 2003
- Additional Notes: This research was partially supported by NSF grant DMS 0200724. Part of the work was done while the author was visiting the Institute for Mathematical Sciences, National University of Singapore, in 2001
- © Copyright 2003 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 356 (2004), 1121-1154
- MSC (2000): Primary 22E46, 17B35
- DOI: https://doi.org/10.1090/S0002-9947-03-03316-6
- MathSciNet review: 1984468