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On the center of two-parameter quantum groups
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- Authors
- Issue Date
- 2006
- Publisher
- Cambridge University Press
- Citation
- Proc. Roy. Soc. Edinburgh A 136 (2006), 445-472
- Abstract
- We describe Poincaré–Birkhoff–Witt bases for the two-parameter quantum groups U = U_{r,s}(sln) following Kharchenko and show that the positive part of U has the structure of an iterated skew polynomial ring. We define an ad-invariant bilinear form on U, which plays an important role in the construction of central elements. We introduce an analogue of the Harish-Chandra homomorphism and use it to determine the centre of U.
- ISSN
- 0080-4541 (Print)
1473-7124 (Online)
http://dx.doi.org/10.1017/S0308210500005011
- Language
- English
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